/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-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:13:58,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:13:59,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:13:59,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:13:59,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:13:59,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:13:59,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:13:59,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:13:59,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:13:59,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:13:59,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:13:59,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:13:59,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:13:59,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:13:59,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:13:59,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:13:59,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:13:59,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:13:59,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:13:59,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:13:59,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:13:59,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:13:59,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:13:59,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:13:59,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:13:59,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:13:59,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:13:59,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:13:59,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:13:59,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:13:59,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:13:59,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:13:59,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:13:59,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:13:59,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:13:59,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:13:59,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:13:59,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:13:59,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:13:59,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:13:59,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:13:59,183 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 21:13:59,244 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:13:59,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:13:59,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:13:59,246 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:13:59,247 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:13:59,248 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:13:59,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:13:59,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:13:59,251 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:13:59,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:13:59,253 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:13:59,253 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:13:59,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:13:59,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:13:59,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:13:59,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:13:59,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:13:59,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:13:59,255 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:13:59,255 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:13:59,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:13:59,255 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:13:59,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:13:59,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:13:59,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:13:59,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:13:59,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:13:59,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:13:59,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:13:59,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:13:59,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:13:59,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:13:59,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:13:59,258 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:13:59,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:13:59,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:13:59,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:13:59,798 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:13:59,799 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:13:59,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2022-10-15 21:13:59,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d48abd012/ba32b57cc1de4429b8326693baa7a12e/FLAG59f70114c [2022-10-15 21:14:00,899 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:14:00,900 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2022-10-15 21:14:00,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d48abd012/ba32b57cc1de4429b8326693baa7a12e/FLAG59f70114c [2022-10-15 21:14:01,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d48abd012/ba32b57cc1de4429b8326693baa7a12e [2022-10-15 21:14:01,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:14:01,416 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:14:01,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:14:01,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:14:01,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:14:01,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:14:01" (1/1) ... [2022-10-15 21:14:01,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10f979bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:01, skipping insertion in model container [2022-10-15 21:14:01,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:14:01" (1/1) ... [2022-10-15 21:14:01,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:14:01,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:14:02,705 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-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i[161556,161569] [2022-10-15 21:14:03,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:14:03,061 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:14:03,238 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-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i[161556,161569] [2022-10-15 21:14:03,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:14:03,425 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:14:03,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:03 WrapperNode [2022-10-15 21:14:03,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:14:03,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:14:03,428 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:14:03,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:14:03,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:03" (1/1) ... [2022-10-15 21:14:03,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:03" (1/1) ... [2022-10-15 21:14:03,639 INFO L138 Inliner]: procedures = 125, calls = 327, calls flagged for inlining = 58, calls inlined = 53, statements flattened = 1090 [2022-10-15 21:14:03,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:14:03,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:14:03,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:14:03,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:14:03,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:03" (1/1) ... [2022-10-15 21:14:03,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:03" (1/1) ... [2022-10-15 21:14:03,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:03" (1/1) ... [2022-10-15 21:14:03,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:03" (1/1) ... [2022-10-15 21:14:03,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:03" (1/1) ... [2022-10-15 21:14:03,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:03" (1/1) ... [2022-10-15 21:14:03,848 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:03" (1/1) ... [2022-10-15 21:14:03,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:03" (1/1) ... [2022-10-15 21:14:03,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:14:03,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:14:03,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:14:03,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:14:03,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:03" (1/1) ... [2022-10-15 21:14:03,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:14:03,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:14:03,929 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 21:14:03,949 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 21:14:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:14:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:14:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:14:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:14:04,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:14:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:14:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-10-15 21:14:04,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-10-15 21:14:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-10-15 21:14:04,008 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-10-15 21:14:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2022-10-15 21:14:04,008 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2022-10-15 21:14:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-10-15 21:14:04,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-10-15 21:14:04,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:14:04,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:14:04,009 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-10-15 21:14:04,009 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-10-15 21:14:04,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:14:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:14:04,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:14:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-10-15 21:14:04,010 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-10-15 21:14:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:14:04,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:14:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2022-10-15 21:14:04,011 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2022-10-15 21:14:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:14:04,011 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:14:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:14:04,012 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:14:04,012 INFO L130 BoogieDeclarations]: Found specification of procedure eem_rx_fixup [2022-10-15 21:14:04,012 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_rx_fixup [2022-10-15 21:14:04,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:14:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-10-15 21:14:04,013 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-10-15 21:14:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-10-15 21:14:04,013 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-10-15 21:14:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:14:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:14:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:14:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:14:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-10-15 21:14:04,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-10-15 21:14:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-15 21:14:04,015 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-15 21:14:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:14:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:14:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-10-15 21:14:04,015 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-10-15 21:14:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:14:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:14:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:14:04,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:14:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:14:04,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:14:04,017 INFO L130 BoogieDeclarations]: Found specification of procedure eem_tx_fixup [2022-10-15 21:14:04,017 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_tx_fixup [2022-10-15 21:14:04,617 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:14:04,621 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:14:04,714 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:14:07,492 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:14:07,522 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:14:07,523 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-15 21:14:07,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:14:07 BoogieIcfgContainer [2022-10-15 21:14:07,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:14:07,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:14:07,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:14:07,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:14:07,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:14:01" (1/3) ... [2022-10-15 21:14:07,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23fdb403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:14:07, skipping insertion in model container [2022-10-15 21:14:07,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:03" (2/3) ... [2022-10-15 21:14:07,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23fdb403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:14:07, skipping insertion in model container [2022-10-15 21:14:07,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:14:07" (3/3) ... [2022-10-15 21:14:07,553 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2022-10-15 21:14:07,588 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:14:07,588 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-10-15 21:14:07,747 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:14:07,759 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;@4d3722f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:14:07,760 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-10-15 21:14:07,772 INFO L276 IsEmpty]: Start isEmpty. Operand has 395 states, 291 states have (on average 1.47766323024055) internal successors, (430), 333 states have internal predecessors, (430), 49 states have call successors, (49), 21 states have call predecessors, (49), 20 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-10-15 21:14:07,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-15 21:14:07,792 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:07,793 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:14:07,795 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-15 21:14:07,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:07,807 INFO L85 PathProgramCache]: Analyzing trace with hash -929916592, now seen corresponding path program 1 times [2022-10-15 21:14:07,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:07,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988174407] [2022-10-15 21:14:07,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:07,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:08,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:14:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:08,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:14:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:08,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:14:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:08,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:14:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:08,714 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-15 21:14:08,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:08,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988174407] [2022-10-15 21:14:08,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988174407] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:14:08,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:14:08,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:14:08,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355699509] [2022-10-15 21:14:08,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:14:08,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:14:08,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:08,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:14:08,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:14:08,770 INFO L87 Difference]: Start difference. First operand has 395 states, 291 states have (on average 1.47766323024055) internal successors, (430), 333 states have internal predecessors, (430), 49 states have call successors, (49), 21 states have call predecessors, (49), 20 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (4), 2 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 21:14:11,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:11,478 INFO L93 Difference]: Finished difference Result 1322 states and 1882 transitions. [2022-10-15 21:14:11,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:14:11,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (4), 2 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 36 [2022-10-15 21:14:11,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:11,505 INFO L225 Difference]: With dead ends: 1322 [2022-10-15 21:14:11,506 INFO L226 Difference]: Without dead ends: 851 [2022-10-15 21:14:11,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:14:11,521 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 1146 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:11,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1194 Valid, 1312 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-10-15 21:14:11,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2022-10-15 21:14:11,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 601. [2022-10-15 21:14:11,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 472 states have (on average 1.402542372881356) internal successors, (662), 505 states have internal predecessors, (662), 65 states have call successors, (65), 34 states have call predecessors, (65), 34 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-10-15 21:14:11,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 792 transitions. [2022-10-15 21:14:11,673 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 792 transitions. Word has length 36 [2022-10-15 21:14:11,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:11,674 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 792 transitions. [2022-10-15 21:14:11,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (4), 2 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 21:14:11,674 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 792 transitions. [2022-10-15 21:14:11,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-15 21:14:11,678 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:11,678 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:14:11,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:14:11,679 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-15 21:14:11,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:11,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1289259001, now seen corresponding path program 1 times [2022-10-15 21:14:11,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:11,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73172353] [2022-10-15 21:14:11,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:11,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:11,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:14:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:11,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:14:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:11,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:14:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:11,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:14:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:11,918 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-15 21:14:11,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:11,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73172353] [2022-10-15 21:14:11,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73172353] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:14:11,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:14:11,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:14:11,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498902119] [2022-10-15 21:14:11,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:14:11,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:14:11,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:11,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:14:11,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:14:11,924 INFO L87 Difference]: Start difference. First operand 601 states and 792 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (4), 2 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 21:14:14,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:14,331 INFO L93 Difference]: Finished difference Result 1495 states and 2017 transitions. [2022-10-15 21:14:14,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:14:14,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (4), 2 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 21:14:14,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:14,341 INFO L225 Difference]: With dead ends: 1495 [2022-10-15 21:14:14,342 INFO L226 Difference]: Without dead ends: 917 [2022-10-15 21:14:14,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:14:14,347 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 447 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:14,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 1183 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-10-15 21:14:14,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-10-15 21:14:14,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 688. [2022-10-15 21:14:14,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 551 states have (on average 1.4137931034482758) internal successors, (779), 584 states have internal predecessors, (779), 69 states have call successors, (69), 38 states have call predecessors, (69), 38 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-10-15 21:14:14,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 917 transitions. [2022-10-15 21:14:14,458 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 917 transitions. Word has length 40 [2022-10-15 21:14:14,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:14,459 INFO L495 AbstractCegarLoop]: Abstraction has 688 states and 917 transitions. [2022-10-15 21:14:14,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (4), 2 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 21:14:14,460 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 917 transitions. [2022-10-15 21:14:14,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-15 21:14:14,463 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:14,463 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:14:14,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:14:14,464 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-15 21:14:14,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:14,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1389624057, now seen corresponding path program 1 times [2022-10-15 21:14:14,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:14,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739894328] [2022-10-15 21:14:14,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:14,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:14,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:14:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:14,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:14:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:14,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:14:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:14,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:14:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:14,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:14:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:14,758 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-15 21:14:14,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:14,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739894328] [2022-10-15 21:14:14,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739894328] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:14:14,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:14:14,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:14:14,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769900375] [2022-10-15 21:14:14,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:14:14,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:14:14,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:14,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:14:14,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:14:14,763 INFO L87 Difference]: Start difference. First operand 688 states and 917 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (5), 2 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 21:14:17,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:17,724 INFO L93 Difference]: Finished difference Result 1573 states and 2138 transitions. [2022-10-15 21:14:17,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:14:17,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (5), 2 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 55 [2022-10-15 21:14:17,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:17,746 INFO L225 Difference]: With dead ends: 1573 [2022-10-15 21:14:17,749 INFO L226 Difference]: Without dead ends: 910 [2022-10-15 21:14:17,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:14:17,766 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 319 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:17,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 1212 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-10-15 21:14:17,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2022-10-15 21:14:17,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 682. [2022-10-15 21:14:17,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 545 states have (on average 1.4146788990825687) internal successors, (771), 579 states have internal predecessors, (771), 69 states have call successors, (69), 38 states have call predecessors, (69), 38 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2022-10-15 21:14:17,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 909 transitions. [2022-10-15 21:14:17,845 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 909 transitions. Word has length 55 [2022-10-15 21:14:17,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:17,846 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 909 transitions. [2022-10-15 21:14:17,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (5), 2 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 21:14:17,846 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 909 transitions. [2022-10-15 21:14:17,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-15 21:14:17,849 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:17,849 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:14:17,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:14:17,850 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-15 21:14:17,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:17,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1906649092, now seen corresponding path program 1 times [2022-10-15 21:14:17,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:17,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783626287] [2022-10-15 21:14:17,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:17,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:18,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:14:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:18,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:14:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:18,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:14:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:18,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:14:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:18,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:14:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:18,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-15 21:14:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:18,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 21:14:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:18,309 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-15 21:14:18,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:18,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783626287] [2022-10-15 21:14:18,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783626287] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:14:18,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:14:18,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:14:18,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439086956] [2022-10-15 21:14:18,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:14:18,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:14:18,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:18,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:14:18,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:14:18,313 INFO L87 Difference]: Start difference. First operand 682 states and 909 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 21:14:21,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:21,268 INFO L93 Difference]: Finished difference Result 1778 states and 2447 transitions. [2022-10-15 21:14:21,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:14:21,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2022-10-15 21:14:21,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:21,284 INFO L225 Difference]: With dead ends: 1778 [2022-10-15 21:14:21,284 INFO L226 Difference]: Without dead ends: 1768 [2022-10-15 21:14:21,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:14:21,288 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 1106 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:21,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 1181 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-15 21:14:21,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2022-10-15 21:14:21,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1307. [2022-10-15 21:14:21,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 1071 states have (on average 1.4014939309056955) internal successors, (1501), 1110 states have internal predecessors, (1501), 133 states have call successors, (133), 73 states have call predecessors, (133), 73 states have return successors, (133), 131 states have call predecessors, (133), 133 states have call successors, (133) [2022-10-15 21:14:21,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1767 transitions. [2022-10-15 21:14:21,397 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1767 transitions. Word has length 68 [2022-10-15 21:14:21,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:21,398 INFO L495 AbstractCegarLoop]: Abstraction has 1307 states and 1767 transitions. [2022-10-15 21:14:21,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 21:14:21,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1767 transitions. [2022-10-15 21:14:21,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-15 21:14:21,402 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:21,402 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:14:21,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:14:21,403 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting eem_tx_fixupErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-15 21:14:21,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:21,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1347356393, now seen corresponding path program 1 times [2022-10-15 21:14:21,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:21,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133063092] [2022-10-15 21:14:21,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:21,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:21,471 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 21:14:21,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1858918659] [2022-10-15 21:14:21,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:21,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:14:21,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:14:21,476 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:14:21,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:14:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:21,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 929 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 21:14:21,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:14:22,022 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-10-15 21:14:22,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:14:22,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:22,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133063092] [2022-10-15 21:14:22,024 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 21:14:22,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858918659] [2022-10-15 21:14:22,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858918659] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:14:22,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:14:22,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:14:22,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521364822] [2022-10-15 21:14:22,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:14:22,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:14:22,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:22,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:14:22,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:14:22,029 INFO L87 Difference]: Start difference. First operand 1307 states and 1767 transitions. Second operand has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-15 21:14:22,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:22,195 INFO L93 Difference]: Finished difference Result 1428 states and 1939 transitions. [2022-10-15 21:14:22,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:14:22,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 75 [2022-10-15 21:14:22,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:22,208 INFO L225 Difference]: With dead ends: 1428 [2022-10-15 21:14:22,208 INFO L226 Difference]: Without dead ends: 1424 [2022-10-15 21:14:22,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 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 21:14:22,211 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 39 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:22,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 847 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:14:22,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2022-10-15 21:14:22,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1394. [2022-10-15 21:14:22,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1159 states have (on average 1.3951682484900776) internal successors, (1617), 1197 states have internal predecessors, (1617), 133 states have call successors, (133), 73 states have call predecessors, (133), 73 states have return successors, (133), 131 states have call predecessors, (133), 133 states have call successors, (133) [2022-10-15 21:14:22,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1883 transitions. [2022-10-15 21:14:22,303 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1883 transitions. Word has length 75 [2022-10-15 21:14:22,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:22,304 INFO L495 AbstractCegarLoop]: Abstraction has 1394 states and 1883 transitions. [2022-10-15 21:14:22,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-15 21:14:22,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1883 transitions. [2022-10-15 21:14:22,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-15 21:14:22,307 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:22,307 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:14:22,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 21:14:22,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:14:22,522 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting eem_tx_fixupErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-15 21:14:22,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:22,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1181625593, now seen corresponding path program 1 times [2022-10-15 21:14:22,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:22,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281311303] [2022-10-15 21:14:22,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:22,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:22,591 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 21:14:22,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [486467441] [2022-10-15 21:14:22,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:22,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:14:22,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:14:22,593 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:14:22,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:14:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:22,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 21:14:22,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:14:22,961 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-10-15 21:14:22,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:14:22,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:22,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281311303] [2022-10-15 21:14:22,962 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 21:14:22,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486467441] [2022-10-15 21:14:22,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486467441] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:14:22,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:14:22,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:14:22,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741446406] [2022-10-15 21:14:22,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:14:22,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:14:22,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:22,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:14:22,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:14:22,965 INFO L87 Difference]: Start difference. First operand 1394 states and 1883 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-15 21:14:23,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:23,092 INFO L93 Difference]: Finished difference Result 1394 states and 1883 transitions. [2022-10-15 21:14:23,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:14:23,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 76 [2022-10-15 21:14:23,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:23,103 INFO L225 Difference]: With dead ends: 1394 [2022-10-15 21:14:23,103 INFO L226 Difference]: Without dead ends: 1390 [2022-10-15 21:14:23,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 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 21:14:23,108 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 37 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:23,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 817 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:14:23,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2022-10-15 21:14:23,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1390. [2022-10-15 21:14:23,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1159 states have (on average 1.3744607420189818) internal successors, (1593), 1193 states have internal predecessors, (1593), 133 states have call successors, (133), 73 states have call predecessors, (133), 73 states have return successors, (133), 131 states have call predecessors, (133), 133 states have call successors, (133) [2022-10-15 21:14:23,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1859 transitions. [2022-10-15 21:14:23,216 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1859 transitions. Word has length 76 [2022-10-15 21:14:23,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:23,218 INFO L495 AbstractCegarLoop]: Abstraction has 1390 states and 1859 transitions. [2022-10-15 21:14:23,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-15 21:14:23,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1859 transitions. [2022-10-15 21:14:23,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-15 21:14:23,222 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:23,223 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:14:23,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 21:14:23,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-15 21:14:23,438 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-15 21:14:23,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:23,440 INFO L85 PathProgramCache]: Analyzing trace with hash 70834690, now seen corresponding path program 1 times [2022-10-15 21:14:23,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:23,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382387052] [2022-10-15 21:14:23,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:23,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:23,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:14:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:23,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:14:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:23,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:14:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:23,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:14:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:23,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:14:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:23,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-15 21:14:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:23,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 21:14:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:23,816 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-15 21:14:23,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:23,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382387052] [2022-10-15 21:14:23,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382387052] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:14:23,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:14:23,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:14:23,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384893616] [2022-10-15 21:14:23,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:14:23,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:14:23,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:23,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:14:23,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:14:23,820 INFO L87 Difference]: Start difference. First operand 1390 states and 1859 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-15 21:14:27,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:27,750 INFO L93 Difference]: Finished difference Result 4059 states and 5547 transitions. [2022-10-15 21:14:27,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:14:27,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 77 [2022-10-15 21:14:27,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:27,775 INFO L225 Difference]: With dead ends: 4059 [2022-10-15 21:14:27,775 INFO L226 Difference]: Without dead ends: 2696 [2022-10-15 21:14:27,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:14:27,788 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 747 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1837 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:27,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 1837 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-10-15 21:14:27,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2022-10-15 21:14:27,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2022. [2022-10-15 21:14:27,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1703 states have (on average 1.372284204345273) internal successors, (2337), 1741 states have internal predecessors, (2337), 187 states have call successors, (187), 107 states have call predecessors, (187), 107 states have return successors, (187), 185 states have call predecessors, (187), 187 states have call successors, (187) [2022-10-15 21:14:27,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 2711 transitions. [2022-10-15 21:14:27,961 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 2711 transitions. Word has length 77 [2022-10-15 21:14:27,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:27,962 INFO L495 AbstractCegarLoop]: Abstraction has 2022 states and 2711 transitions. [2022-10-15 21:14:27,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-15 21:14:27,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 2711 transitions. [2022-10-15 21:14:27,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-15 21:14:27,976 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:27,976 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:14:27,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 21:14:27,977 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-15 21:14:27,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:27,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1601549153, now seen corresponding path program 1 times [2022-10-15 21:14:27,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:27,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450527788] [2022-10-15 21:14:28,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:28,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:28,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:14:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:28,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:14:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:28,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:14:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:28,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:14:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:28,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:14:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:28,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-15 21:14:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:28,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 21:14:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:28,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-15 21:14:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:28,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-15 21:14:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:28,372 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-10-15 21:14:28,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:28,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450527788] [2022-10-15 21:14:28,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450527788] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:14:28,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:14:28,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:14:28,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793160216] [2022-10-15 21:14:28,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:14:28,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:14:28,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:28,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:14:28,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:14:28,379 INFO L87 Difference]: Start difference. First operand 2022 states and 2711 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-15 21:14:31,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:31,131 INFO L93 Difference]: Finished difference Result 4276 states and 5824 transitions. [2022-10-15 21:14:31,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:14:31,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 80 [2022-10-15 21:14:31,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:31,152 INFO L225 Difference]: With dead ends: 4276 [2022-10-15 21:14:31,152 INFO L226 Difference]: Without dead ends: 2281 [2022-10-15 21:14:31,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:14:31,163 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 1043 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:31,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 1252 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-10-15 21:14:31,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2281 states. [2022-10-15 21:14:31,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2281 to 1713. [2022-10-15 21:14:31,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1444 states have (on average 1.3718836565096952) internal successors, (1981), 1480 states have internal predecessors, (1981), 156 states have call successors, (156), 88 states have call predecessors, (156), 88 states have return successors, (156), 154 states have call predecessors, (156), 156 states have call successors, (156) [2022-10-15 21:14:31,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2293 transitions. [2022-10-15 21:14:31,323 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2293 transitions. Word has length 80 [2022-10-15 21:14:31,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:31,323 INFO L495 AbstractCegarLoop]: Abstraction has 1713 states and 2293 transitions. [2022-10-15 21:14:31,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-15 21:14:31,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2293 transitions. [2022-10-15 21:14:31,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-15 21:14:31,327 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:31,327 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:14:31,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 21:14:31,328 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting eem_tx_fixupErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-15 21:14:31,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:31,328 INFO L85 PathProgramCache]: Analyzing trace with hash -388854387, now seen corresponding path program 1 times [2022-10-15 21:14:31,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:31,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755717899] [2022-10-15 21:14:31,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:31,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:31,389 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 21:14:31,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1949796104] [2022-10-15 21:14:31,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:31,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:14:31,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:14:31,392 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:14:31,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 21:14:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:31,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:14:31,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:14:31,808 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-10-15 21:14:31,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:14:31,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:31,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755717899] [2022-10-15 21:14:31,810 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 21:14:31,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949796104] [2022-10-15 21:14:31,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949796104] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:14:31,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:14:31,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:14:31,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464388052] [2022-10-15 21:14:31,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:14:31,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:14:31,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:31,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:14:31,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:14:31,813 INFO L87 Difference]: Start difference. First operand 1713 states and 2293 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-15 21:14:31,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:31,921 INFO L93 Difference]: Finished difference Result 1750 states and 2338 transitions. [2022-10-15 21:14:31,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:14:31,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 82 [2022-10-15 21:14:31,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:31,933 INFO L225 Difference]: With dead ends: 1750 [2022-10-15 21:14:31,934 INFO L226 Difference]: Without dead ends: 1747 [2022-10-15 21:14:31,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:14:31,936 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 91 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:31,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 849 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:14:31,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2022-10-15 21:14:32,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1600. [2022-10-15 21:14:32,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1334 states have (on average 1.368815592203898) internal successors, (1826), 1367 states have internal predecessors, (1826), 156 states have call successors, (156), 88 states have call predecessors, (156), 88 states have return successors, (156), 154 states have call predecessors, (156), 156 states have call successors, (156) [2022-10-15 21:14:32,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 2138 transitions. [2022-10-15 21:14:32,035 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 2138 transitions. Word has length 82 [2022-10-15 21:14:32,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:32,035 INFO L495 AbstractCegarLoop]: Abstraction has 1600 states and 2138 transitions. [2022-10-15 21:14:32,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-15 21:14:32,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 2138 transitions. [2022-10-15 21:14:32,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-15 21:14:32,038 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:32,039 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:14:32,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 21:14:32,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:14:32,253 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-15 21:14:32,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:32,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1115225233, now seen corresponding path program 1 times [2022-10-15 21:14:32,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:32,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151172828] [2022-10-15 21:14:32,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:32,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:32,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:14:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:32,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:14:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:32,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:14:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:32,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:14:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:32,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:14:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:32,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-15 21:14:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:32,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 21:14:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:32,603 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-10-15 21:14:32,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:32,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151172828] [2022-10-15 21:14:32,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151172828] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:14:32,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:14:32,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:14:32,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846954104] [2022-10-15 21:14:32,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:14:32,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:14:32,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:32,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:14:32,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:14:32,606 INFO L87 Difference]: Start difference. First operand 1600 states and 2138 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 21:14:35,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:35,777 INFO L93 Difference]: Finished difference Result 5091 states and 6938 transitions. [2022-10-15 21:14:35,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:14:35,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 81 [2022-10-15 21:14:35,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:35,808 INFO L225 Difference]: With dead ends: 5091 [2022-10-15 21:14:35,808 INFO L226 Difference]: Without dead ends: 3533 [2022-10-15 21:14:35,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:14:35,817 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 1039 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:35,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 1259 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-10-15 21:14:35,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3533 states. [2022-10-15 21:14:36,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3533 to 2537. [2022-10-15 21:14:36,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2537 states, 2114 states have (on average 1.3547776726584673) internal successors, (2864), 2156 states have internal predecessors, (2864), 250 states have call successors, (250), 151 states have call predecessors, (250), 151 states have return successors, (250), 247 states have call predecessors, (250), 250 states have call successors, (250) [2022-10-15 21:14:36,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2537 states to 2537 states and 3364 transitions. [2022-10-15 21:14:36,049 INFO L78 Accepts]: Start accepts. Automaton has 2537 states and 3364 transitions. Word has length 81 [2022-10-15 21:14:36,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:36,050 INFO L495 AbstractCegarLoop]: Abstraction has 2537 states and 3364 transitions. [2022-10-15 21:14:36,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 21:14:36,050 INFO L276 IsEmpty]: Start isEmpty. Operand 2537 states and 3364 transitions. [2022-10-15 21:14:36,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-15 21:14:36,053 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:36,053 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:14:36,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 21:14:36,054 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-15 21:14:36,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:36,055 INFO L85 PathProgramCache]: Analyzing trace with hash 70451675, now seen corresponding path program 1 times [2022-10-15 21:14:36,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:36,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738185263] [2022-10-15 21:14:36,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:36,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:36,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:14:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:36,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:14:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:36,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:14:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:36,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:14:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:36,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:14:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:36,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-15 21:14:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:36,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 21:14:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:36,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-15 21:14:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:36,605 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-15 21:14:36,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:36,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738185263] [2022-10-15 21:14:36,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738185263] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:14:36,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573298129] [2022-10-15 21:14:36,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:36,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:14:36,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:14:36,608 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:14:36,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 21:14:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:36,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:14:36,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:14:37,092 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-15 21:14:37,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:14:37,233 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-15 21:14:37,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573298129] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:14:37,234 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:14:37,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2022-10-15 21:14:37,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921028770] [2022-10-15 21:14:37,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:14:37,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-15 21:14:37,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:37,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-15 21:14:37,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:14:37,237 INFO L87 Difference]: Start difference. First operand 2537 states and 3364 transitions. Second operand has 9 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 6 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2022-10-15 21:14:42,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:42,614 INFO L93 Difference]: Finished difference Result 8853 states and 12117 transitions. [2022-10-15 21:14:42,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-15 21:14:42,615 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 6 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 82 [2022-10-15 21:14:42,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:42,689 INFO L225 Difference]: With dead ends: 8853 [2022-10-15 21:14:42,689 INFO L226 Difference]: Without dead ends: 8848 [2022-10-15 21:14:42,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=217, Unknown=0, NotChecked=0, Total=342 [2022-10-15 21:14:42,698 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 4742 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 1808 mSolverCounterSat, 1217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4880 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 3025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1217 IncrementalHoareTripleChecker+Valid, 1808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:42,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4880 Valid, 2121 Invalid, 3025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1217 Valid, 1808 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-10-15 21:14:42,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8848 states. [2022-10-15 21:14:43,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8848 to 4151. [2022-10-15 21:14:43,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4151 states, 3470 states have (on average 1.3412103746397694) internal successors, (4654), 3523 states have internal predecessors, (4654), 414 states have call successors, (414), 248 states have call predecessors, (414), 248 states have return successors, (414), 409 states have call predecessors, (414), 414 states have call successors, (414) [2022-10-15 21:14:43,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4151 states to 4151 states and 5482 transitions. [2022-10-15 21:14:43,241 INFO L78 Accepts]: Start accepts. Automaton has 4151 states and 5482 transitions. Word has length 82 [2022-10-15 21:14:43,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:43,242 INFO L495 AbstractCegarLoop]: Abstraction has 4151 states and 5482 transitions. [2022-10-15 21:14:43,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 6 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2022-10-15 21:14:43,242 INFO L276 IsEmpty]: Start isEmpty. Operand 4151 states and 5482 transitions. [2022-10-15 21:14:43,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-15 21:14:43,244 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:43,245 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:14:43,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 21:14:43,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:14:43,459 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-15 21:14:43,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:43,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2110964863, now seen corresponding path program 1 times [2022-10-15 21:14:43,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:43,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346969684] [2022-10-15 21:14:43,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:43,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:43,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:14:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:43,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:14:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:43,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:14:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:43,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:14:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:43,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:14:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:43,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-15 21:14:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:43,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 21:14:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:43,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-15 21:14:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:43,860 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-15 21:14:43,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:43,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346969684] [2022-10-15 21:14:43,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346969684] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:14:43,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80243885] [2022-10-15 21:14:43,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:43,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:14:43,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:14:43,863 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:14:43,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 21:14:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:44,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:14:44,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:14:44,309 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-15 21:14:44,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:14:44,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80243885] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:14:44,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:14:44,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-15 21:14:44,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547152573] [2022-10-15 21:14:44,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:14:44,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:14:44,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:44,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:14:44,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:14:44,312 INFO L87 Difference]: Start difference. First operand 4151 states and 5482 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-10-15 21:14:45,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:45,630 INFO L93 Difference]: Finished difference Result 7710 states and 10196 transitions. [2022-10-15 21:14:45,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:14:45,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 83 [2022-10-15 21:14:45,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:45,673 INFO L225 Difference]: With dead ends: 7710 [2022-10-15 21:14:45,673 INFO L226 Difference]: Without dead ends: 7705 [2022-10-15 21:14:45,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:14:45,680 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 809 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:45,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 1540 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-15 21:14:45,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7705 states. [2022-10-15 21:14:46,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7705 to 6836. [2022-10-15 21:14:46,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6836 states, 5729 states have (on average 1.3445627509163902) internal successors, (7703), 5805 states have internal predecessors, (7703), 678 states have call successors, (678), 410 states have call predecessors, (678), 410 states have return successors, (678), 670 states have call predecessors, (678), 678 states have call successors, (678) [2022-10-15 21:14:46,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6836 states to 6836 states and 9059 transitions. [2022-10-15 21:14:46,332 INFO L78 Accepts]: Start accepts. Automaton has 6836 states and 9059 transitions. Word has length 83 [2022-10-15 21:14:46,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:46,333 INFO L495 AbstractCegarLoop]: Abstraction has 6836 states and 9059 transitions. [2022-10-15 21:14:46,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-10-15 21:14:46,333 INFO L276 IsEmpty]: Start isEmpty. Operand 6836 states and 9059 transitions. [2022-10-15 21:14:46,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-15 21:14:46,336 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:46,336 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:14:46,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 21:14:46,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-15 21:14:46,550 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting eem_tx_fixupErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-15 21:14:46,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:46,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1267242119, now seen corresponding path program 1 times [2022-10-15 21:14:46,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:46,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400461720] [2022-10-15 21:14:46,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:46,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:46,625 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 21:14:46,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1544297173] [2022-10-15 21:14:46,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:46,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:14:46,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:14:46,627 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:14:46,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 21:14:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:46,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 21:14:47,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:14:47,228 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-10-15 21:14:47,228 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:14:47,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:47,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400461720] [2022-10-15 21:14:47,229 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 21:14:47,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544297173] [2022-10-15 21:14:47,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544297173] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:14:47,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:14:47,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:14:47,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757201595] [2022-10-15 21:14:47,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:14:47,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:14:47,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:47,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:14:47,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:14:47,250 INFO L87 Difference]: Start difference. First operand 6836 states and 9059 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-15 21:14:47,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:47,988 INFO L93 Difference]: Finished difference Result 7488 states and 9809 transitions. [2022-10-15 21:14:47,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:14:47,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 88 [2022-10-15 21:14:47,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:48,031 INFO L225 Difference]: With dead ends: 7488 [2022-10-15 21:14:48,031 INFO L226 Difference]: Without dead ends: 7487 [2022-10-15 21:14:48,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:14:48,039 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 48 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 1298 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:48,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 1298 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:14:48,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7487 states. [2022-10-15 21:14:48,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7487 to 6986. [2022-10-15 21:14:48,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6986 states, 5879 states have (on average 1.3357713896921246) internal successors, (7853), 5955 states have internal predecessors, (7853), 678 states have call successors, (678), 410 states have call predecessors, (678), 410 states have return successors, (678), 670 states have call predecessors, (678), 678 states have call successors, (678) [2022-10-15 21:14:48,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6986 states to 6986 states and 9209 transitions. [2022-10-15 21:14:48,928 INFO L78 Accepts]: Start accepts. Automaton has 6986 states and 9209 transitions. Word has length 88 [2022-10-15 21:14:48,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:48,929 INFO L495 AbstractCegarLoop]: Abstraction has 6986 states and 9209 transitions. [2022-10-15 21:14:48,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-15 21:14:48,930 INFO L276 IsEmpty]: Start isEmpty. Operand 6986 states and 9209 transitions. [2022-10-15 21:14:48,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-15 21:14:48,933 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:48,933 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:14:48,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 21:14:49,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:14:49,146 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting eem_tx_fixupErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-15 21:14:49,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:49,147 INFO L85 PathProgramCache]: Analyzing trace with hash 507765243, now seen corresponding path program 1 times [2022-10-15 21:14:49,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:49,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744992700] [2022-10-15 21:14:49,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:49,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:49,208 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 21:14:49,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1418444544] [2022-10-15 21:14:49,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:49,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:14:49,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:14:49,211 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:14:49,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 21:14:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:49,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 1003 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-15 21:14:49,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:14:49,690 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-15 21:14:49,690 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:14:49,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:49,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744992700] [2022-10-15 21:14:49,691 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 21:14:49,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418444544] [2022-10-15 21:14:49,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418444544] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:14:49,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:14:49,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:14:49,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289781317] [2022-10-15 21:14:49,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:14:49,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:14:49,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:49,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:14:49,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:14:49,695 INFO L87 Difference]: Start difference. First operand 6986 states and 9209 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)