java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:40:42,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:40:42,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:40:42,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:40:42,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:40:42,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:40:42,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:40:42,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:40:42,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:40:42,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:40:42,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:40:42,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:40:42,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:40:42,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:40:42,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:40:42,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:40:42,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:40:42,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:40:42,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:40:42,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:40:42,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:40:42,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:40:42,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:40:42,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:40:42,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:40:42,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:40:42,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:40:42,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:40:42,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:40:42,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:40:42,802 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:40:42,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:40:42,804 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:40:42,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:40:42,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:40:42,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:40:42,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:40:42,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:40:42,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:40:42,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:40:42,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:40:42,812 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:40:42,835 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:40:42,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:40:42,837 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:40:42,837 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:40:42,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:40:42,838 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:40:42,838 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:40:42,838 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:40:42,839 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:40:42,839 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:40:42,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:40:42,841 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:40:42,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:40:42,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:40:42,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:40:42,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:40:42,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:40:42,843 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:40:42,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:40:42,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:40:42,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:40:42,843 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:40:42,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:40:42,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:40:42,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:40:42,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:40:42,845 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:40:42,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:40:42,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:40:42,845 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:40:42,878 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:40:42,896 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:40:42,901 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:40:42,903 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:40:42,903 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:40:42,904 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product32.cil.c [2019-09-10 02:40:42,967 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c67d7f5a/a827d95b38ca47aaa4479b9b639956db/FLAG74ec22e9b [2019-09-10 02:40:43,550 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:40:43,550 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product32.cil.c [2019-09-10 02:40:43,578 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c67d7f5a/a827d95b38ca47aaa4479b9b639956db/FLAG74ec22e9b [2019-09-10 02:40:43,729 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c67d7f5a/a827d95b38ca47aaa4479b9b639956db [2019-09-10 02:40:43,738 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:40:43,739 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:40:43,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:40:43,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:40:43,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:40:43,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:40:43" (1/1) ... [2019-09-10 02:40:43,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d3323d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:43, skipping insertion in model container [2019-09-10 02:40:43,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:40:43" (1/1) ... [2019-09-10 02:40:43,757 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:40:43,832 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:40:44,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:40:44,643 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:40:44,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:40:44,902 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:40:44,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:44 WrapperNode [2019-09-10 02:40:44,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:40:44,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:40:44,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:40:44,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:40:44,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:44" (1/1) ... [2019-09-10 02:40:44,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:44" (1/1) ... [2019-09-10 02:40:44,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:44" (1/1) ... [2019-09-10 02:40:44,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:44" (1/1) ... [2019-09-10 02:40:45,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:44" (1/1) ... [2019-09-10 02:40:45,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:44" (1/1) ... [2019-09-10 02:40:45,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:44" (1/1) ... [2019-09-10 02:40:45,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:40:45,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:40:45,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:40:45,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:40:45,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:40:45,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:40:45,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:40:45,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:40:45,303 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-10 02:40:45,303 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-10 02:40:45,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-10 02:40:45,304 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-10 02:40:45,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-10 02:40:45,304 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-10 02:40:45,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-10 02:40:45,305 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-10 02:40:45,306 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-10 02:40:45,306 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-10 02:40:45,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-10 02:40:45,307 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-10 02:40:45,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-10 02:40:45,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-10 02:40:45,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-10 02:40:45,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-10 02:40:45,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-10 02:40:45,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-10 02:40:45,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-10 02:40:45,311 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-10 02:40:45,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-10 02:40:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-10 02:40:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-10 02:40:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-10 02:40:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-10 02:40:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-10 02:40:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-10 02:40:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-10 02:40:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-10 02:40:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-09-10 02:40:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:40:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-10 02:40:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:40:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:40:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:40:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:40:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:40:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:40:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-10 02:40:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-10 02:40:45,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-10 02:40:45,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-10 02:40:45,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-10 02:40:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-10 02:40:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-10 02:40:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-10 02:40:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:40:45,319 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:40:45,319 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-10 02:40:45,319 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-10 02:40:45,319 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-10 02:40:45,320 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-10 02:40:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-10 02:40:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-10 02:40:45,322 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-10 02:40:45,322 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-10 02:40:45,322 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-10 02:40:45,323 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-09-10 02:40:45,323 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-09-10 02:40:45,323 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-10 02:40:45,323 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-09-10 02:40:45,324 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-09-10 02:40:45,324 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-09-10 02:40:45,325 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-10 02:40:45,325 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-10 02:40:45,325 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-09-10 02:40:45,325 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-09-10 02:40:45,326 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-09-10 02:40:45,326 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-10 02:40:45,326 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-10 02:40:45,327 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-10 02:40:45,327 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-10 02:40:45,328 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-10 02:40:45,328 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-10 02:40:45,328 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-10 02:40:45,328 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-10 02:40:45,329 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-10 02:40:45,330 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-09-10 02:40:45,330 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-09-10 02:40:45,330 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-09-10 02:40:45,330 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-09-10 02:40:45,331 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-10 02:40:45,331 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-10 02:40:45,331 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-10 02:40:45,332 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-10 02:40:45,332 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-10 02:40:45,333 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-10 02:40:45,333 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-10 02:40:45,333 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-10 02:40:45,333 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-10 02:40:45,334 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-10 02:40:45,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-10 02:40:45,334 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-10 02:40:45,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-10 02:40:45,335 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-10 02:40:45,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-10 02:40:45,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-10 02:40:45,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-10 02:40:45,336 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-10 02:40:45,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-10 02:40:45,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-10 02:40:45,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-10 02:40:45,337 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:40:45,337 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:40:45,337 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:40:45,337 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:40:45,337 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-09-10 02:40:45,338 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-09-10 02:40:45,338 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-09-10 02:40:45,338 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-10 02:40:45,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-09-10 02:40:45,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-10 02:40:45,339 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-10 02:40:45,340 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-10 02:40:45,341 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:40:45,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:40:45,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:40:45,342 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-10 02:40:45,342 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-10 02:40:45,342 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-10 02:40:45,344 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-10 02:40:45,344 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-10 02:40:45,344 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-10 02:40:45,345 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-10 02:40:45,345 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-10 02:40:45,345 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-10 02:40:45,345 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-10 02:40:45,346 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-10 02:40:45,346 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-10 02:40:45,347 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-10 02:40:45,347 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-10 02:40:45,347 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-10 02:40:45,347 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-10 02:40:45,347 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-10 02:40:45,348 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-10 02:40:45,349 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-10 02:40:45,353 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-10 02:40:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-10 02:40:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-10 02:40:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-10 02:40:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-10 02:40:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-10 02:40:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-10 02:40:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-10 02:40:45,361 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-10 02:40:45,361 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-10 02:40:45,361 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:40:45,361 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-10 02:40:45,362 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-10 02:40:45,362 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-10 02:40:45,363 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-09-10 02:40:45,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:40:45,364 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:40:45,364 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-10 02:40:45,364 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:40:45,364 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:40:45,364 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:40:45,365 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:40:45,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:40:45,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:40:45,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:40:45,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:40:45,366 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:40:45,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:40:45,366 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:40:45,366 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:40:45,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:40:45,367 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:40:45,367 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:40:45,367 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:40:45,368 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:40:45,368 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:40:45,368 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:40:45,368 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-10 02:40:45,369 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-10 02:40:45,369 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-10 02:40:45,369 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-10 02:40:45,369 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-10 02:40:45,369 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-10 02:40:45,370 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-10 02:40:45,371 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-10 02:40:45,371 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-10 02:40:45,371 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-10 02:40:45,371 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-10 02:40:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:40:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:40:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:40:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-10 02:40:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-10 02:40:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-10 02:40:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-10 02:40:45,374 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-10 02:40:45,374 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-10 02:40:45,374 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-10 02:40:45,374 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-10 02:40:45,375 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-10 02:40:45,375 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-09-10 02:40:45,375 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-09-10 02:40:45,375 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-10 02:40:45,376 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-10 02:40:45,376 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-10 02:40:45,376 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-10 02:40:45,376 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-10 02:40:45,377 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-10 02:40:45,377 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-10 02:40:45,377 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-10 02:40:45,377 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-10 02:40:45,378 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-10 02:40:45,378 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-10 02:40:45,378 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-10 02:40:45,378 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-10 02:40:45,379 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-10 02:40:45,379 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-10 02:40:45,379 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-10 02:40:45,379 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-10 02:40:45,380 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-10 02:40:45,380 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-10 02:40:45,380 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-10 02:40:45,380 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-10 02:40:45,380 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-10 02:40:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-10 02:40:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-09-10 02:40:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-09-10 02:40:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-09-10 02:40:45,382 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-09-10 02:40:45,382 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-09-10 02:40:45,382 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-09-10 02:40:45,382 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-09-10 02:40:45,383 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-09-10 02:40:45,383 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-09-10 02:40:45,383 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-09-10 02:40:45,383 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-10 02:40:45,383 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-10 02:40:45,384 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-10 02:40:45,384 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-10 02:40:45,384 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-10 02:40:45,384 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-10 02:40:45,385 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-10 02:40:45,385 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:40:45,385 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-10 02:40:45,385 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-10 02:40:45,386 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-09-10 02:40:45,386 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-09-10 02:40:45,386 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-09-10 02:40:45,386 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-09-10 02:40:45,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:40:45,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:40:45,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:40:47,729 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:40:47,729 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 02:40:47,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:40:47 BoogieIcfgContainer [2019-09-10 02:40:47,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:40:47,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:40:47,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:40:47,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:40:47,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:40:43" (1/3) ... [2019-09-10 02:40:47,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f606ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:40:47, skipping insertion in model container [2019-09-10 02:40:47,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:44" (2/3) ... [2019-09-10 02:40:47,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f606ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:40:47, skipping insertion in model container [2019-09-10 02:40:47,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:40:47" (3/3) ... [2019-09-10 02:40:47,738 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product32.cil.c [2019-09-10 02:40:47,748 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:40:47,761 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:40:47,781 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:40:47,810 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:40:47,811 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:40:47,811 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:40:47,811 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:40:47,814 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:40:47,814 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:40:47,814 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:40:47,814 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:40:47,856 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states. [2019-09-10 02:40:47,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2019-09-10 02:40:47,900 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:47,902 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:47,904 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:47,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:47,910 INFO L82 PathProgramCache]: Analyzing trace with hash -175128502, now seen corresponding path program 1 times [2019-09-10 02:40:47,912 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:47,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:47,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:47,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:47,963 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:48,616 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-09-10 02:40:48,618 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:48,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:40:48,619 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:48,626 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:40:48,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:40:48,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:48,643 INFO L87 Difference]: Start difference. First operand 639 states. Second operand 2 states. [2019-09-10 02:40:48,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:48,720 INFO L93 Difference]: Finished difference Result 596 states and 812 transitions. [2019-09-10 02:40:48,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:40:48,721 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 220 [2019-09-10 02:40:48,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:48,750 INFO L225 Difference]: With dead ends: 596 [2019-09-10 02:40:48,750 INFO L226 Difference]: Without dead ends: 587 [2019-09-10 02:40:48,753 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:48,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2019-09-10 02:40:48,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 587. [2019-09-10 02:40:48,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2019-09-10 02:40:48,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 801 transitions. [2019-09-10 02:40:48,863 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 801 transitions. Word has length 220 [2019-09-10 02:40:48,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:48,865 INFO L475 AbstractCegarLoop]: Abstraction has 587 states and 801 transitions. [2019-09-10 02:40:48,865 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:40:48,866 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 801 transitions. [2019-09-10 02:40:48,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-09-10 02:40:48,872 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:48,873 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:48,873 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:48,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:48,874 INFO L82 PathProgramCache]: Analyzing trace with hash 217234565, now seen corresponding path program 1 times [2019-09-10 02:40:48,874 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:48,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:48,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:48,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:48,875 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:49,166 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-09-10 02:40:49,166 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:49,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:49,166 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:49,169 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:49,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:49,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:49,170 INFO L87 Difference]: Start difference. First operand 587 states and 801 transitions. Second operand 3 states. [2019-09-10 02:40:49,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:49,212 INFO L93 Difference]: Finished difference Result 590 states and 804 transitions. [2019-09-10 02:40:49,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:49,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2019-09-10 02:40:49,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:49,218 INFO L225 Difference]: With dead ends: 590 [2019-09-10 02:40:49,219 INFO L226 Difference]: Without dead ends: 590 [2019-09-10 02:40:49,220 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:49,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2019-09-10 02:40:49,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 589. [2019-09-10 02:40:49,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2019-09-10 02:40:49,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 803 transitions. [2019-09-10 02:40:49,249 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 803 transitions. Word has length 221 [2019-09-10 02:40:49,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:49,249 INFO L475 AbstractCegarLoop]: Abstraction has 589 states and 803 transitions. [2019-09-10 02:40:49,250 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:49,250 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 803 transitions. [2019-09-10 02:40:49,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-09-10 02:40:49,255 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:49,255 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:49,256 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:49,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:49,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1493318645, now seen corresponding path program 1 times [2019-09-10 02:40:49,256 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:49,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:49,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:49,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:49,257 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:49,462 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-09-10 02:40:49,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:49,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:49,464 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:49,465 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:49,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:49,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:49,468 INFO L87 Difference]: Start difference. First operand 589 states and 803 transitions. Second operand 3 states. [2019-09-10 02:40:49,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:49,503 INFO L93 Difference]: Finished difference Result 632 states and 876 transitions. [2019-09-10 02:40:49,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:49,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-09-10 02:40:49,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:49,510 INFO L225 Difference]: With dead ends: 632 [2019-09-10 02:40:49,510 INFO L226 Difference]: Without dead ends: 632 [2019-09-10 02:40:49,511 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:49,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2019-09-10 02:40:49,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 631. [2019-09-10 02:40:49,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-09-10 02:40:49,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 875 transitions. [2019-09-10 02:40:49,562 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 875 transitions. Word has length 231 [2019-09-10 02:40:49,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:49,564 INFO L475 AbstractCegarLoop]: Abstraction has 631 states and 875 transitions. [2019-09-10 02:40:49,564 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:49,565 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 875 transitions. [2019-09-10 02:40:49,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-09-10 02:40:49,573 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:49,574 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:49,574 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:49,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:49,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1395259844, now seen corresponding path program 1 times [2019-09-10 02:40:49,575 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:49,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:49,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:49,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:49,577 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:49,841 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-09-10 02:40:49,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:49,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:49,842 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:49,842 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:49,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:49,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:49,843 INFO L87 Difference]: Start difference. First operand 631 states and 875 transitions. Second operand 3 states. [2019-09-10 02:40:49,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:49,874 INFO L93 Difference]: Finished difference Result 713 states and 1014 transitions. [2019-09-10 02:40:49,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:49,875 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2019-09-10 02:40:49,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:49,882 INFO L225 Difference]: With dead ends: 713 [2019-09-10 02:40:49,882 INFO L226 Difference]: Without dead ends: 713 [2019-09-10 02:40:49,883 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:49,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2019-09-10 02:40:49,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 712. [2019-09-10 02:40:49,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2019-09-10 02:40:49,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 1013 transitions. [2019-09-10 02:40:49,922 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 1013 transitions. Word has length 232 [2019-09-10 02:40:49,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:49,923 INFO L475 AbstractCegarLoop]: Abstraction has 712 states and 1013 transitions. [2019-09-10 02:40:49,923 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:49,923 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 1013 transitions. [2019-09-10 02:40:49,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-09-10 02:40:49,931 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:49,931 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:49,932 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:49,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:49,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1916343691, now seen corresponding path program 1 times [2019-09-10 02:40:49,932 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:49,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:49,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:49,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:49,934 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:50,212 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-09-10 02:40:50,213 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:50,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:50,213 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:50,214 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:50,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:50,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:50,215 INFO L87 Difference]: Start difference. First operand 712 states and 1013 transitions. Second operand 3 states. [2019-09-10 02:40:50,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:50,240 INFO L93 Difference]: Finished difference Result 869 states and 1278 transitions. [2019-09-10 02:40:50,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:50,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2019-09-10 02:40:50,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:50,246 INFO L225 Difference]: With dead ends: 869 [2019-09-10 02:40:50,246 INFO L226 Difference]: Without dead ends: 869 [2019-09-10 02:40:50,246 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:50,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2019-09-10 02:40:50,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 868. [2019-09-10 02:40:50,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 868 states. [2019-09-10 02:40:50,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1277 transitions. [2019-09-10 02:40:50,275 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1277 transitions. Word has length 233 [2019-09-10 02:40:50,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:50,276 INFO L475 AbstractCegarLoop]: Abstraction has 868 states and 1277 transitions. [2019-09-10 02:40:50,276 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:50,276 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1277 transitions. [2019-09-10 02:40:50,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-09-10 02:40:50,282 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:50,282 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:50,282 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:50,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:50,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1288958908, now seen corresponding path program 1 times [2019-09-10 02:40:50,283 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:50,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:50,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:50,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:50,284 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:50,446 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-09-10 02:40:50,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:50,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:50,447 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:50,448 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:50,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:50,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:50,449 INFO L87 Difference]: Start difference. First operand 868 states and 1277 transitions. Second operand 3 states. [2019-09-10 02:40:50,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:50,475 INFO L93 Difference]: Finished difference Result 1169 states and 1782 transitions. [2019-09-10 02:40:50,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:50,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2019-09-10 02:40:50,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:50,483 INFO L225 Difference]: With dead ends: 1169 [2019-09-10 02:40:50,483 INFO L226 Difference]: Without dead ends: 1169 [2019-09-10 02:40:50,483 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:50,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2019-09-10 02:40:50,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1168. [2019-09-10 02:40:50,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1168 states. [2019-09-10 02:40:50,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 1781 transitions. [2019-09-10 02:40:50,519 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 1781 transitions. Word has length 234 [2019-09-10 02:40:50,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:50,520 INFO L475 AbstractCegarLoop]: Abstraction has 1168 states and 1781 transitions. [2019-09-10 02:40:50,520 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:50,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 1781 transitions. [2019-09-10 02:40:50,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-09-10 02:40:50,529 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:50,529 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:50,530 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:50,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:50,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1347912636, now seen corresponding path program 1 times [2019-09-10 02:40:50,530 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:50,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:50,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:50,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:50,532 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:51,104 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-09-10 02:40:51,104 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:40:51,104 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:40:51,105 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 238 with the following transitions: [2019-09-10 02:40:51,108 INFO L207 CegarAbsIntRunner]: [44], [46], [49], [51], [53], [56], [80], [83], [93], [124], [127], [137], [138], [154], [157], [171], [172], [174], [284], [286], [290], [293], [294], [295], [298], [304], [326], [340], [342], [344], [351], [355], [368], [371], [380], [381], [383], [386], [390], [391], [393], [394], [397], [407], [408], [445], [447], [459], [481], [483], [503], [672], [674], [675], [676], [682], [685], [691], [712], [715], [729], [758], [759], [770], [772], [785], [787], [790], [794], [808], [812], [815], [833], [836], [867], [869], [894], [900], [909], [913], [915], [917], [920], [927], [934], [937], [939], [1075], [1077], [1094], [1098], [1101], [1115], [1223], [1295], [1299], [1300], [1303], [1309], [1310], [1313], [1314], [1317], [1320], [1351], [1354], [1356], [1439], [1442], [1448], [1469], [1472], [1486], [1492], [1495], [1504], [1698], [1700], [1702], [1704], [1705], [1717], [1718], [1719], [1720], [1721], [1722], [1723], [1741], [1751], [1752], [1753], [1754], [1755], [1756], [1759], [1760], [1761], [1762], [1763], [1765], [1766], [1767], [1768], [1775], [1781], [1782], [1783], [1784], [1789], [1791], [1797], [1798], [1801], [1802], [1803], [1815], [1816], [1829], [1830], [1831], [1832], [1833], [1851], [1852], [1865], [1866], [1867], [1869], [1870], [1875], [1876], [1877], [1878], [1879], [1880], [1881], [1882], [1883], [1885], [1886], [1887], [1888], [1903], [1904], [1915], [1921], [1922], [1939], [1941], [1942], [1959], [1961], [1962], [1963], [1965], [1966], [1967], [1968], [1969], [1970], [1971], [1991], [1992], [1993], [1994], [1995], [1996], [1997], [1998], [1999] [2019-09-10 02:40:51,202 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:40:51,202 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:40:51,374 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:40:51,376 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 270 root evaluator evaluations with a maximum evaluation depth of 0. Performed 270 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 380 variables. [2019-09-10 02:40:51,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:51,380 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:40:51,476 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:40:51,477 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:40:51,488 INFO L420 sIntCurrentIteration]: We unified 236 AI predicates to 236 [2019-09-10 02:40:51,488 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:40:51,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:40:51,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [19] total 19 [2019-09-10 02:40:51,489 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:51,490 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:40:51,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:40:51,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:51,491 INFO L87 Difference]: Start difference. First operand 1168 states and 1781 transitions. Second operand 2 states. [2019-09-10 02:40:51,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:51,492 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:40:51,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:40:51,492 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 237 [2019-09-10 02:40:51,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:51,492 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:40:51,493 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:40:51,493 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:51,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:40:51,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:40:51,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:40:51,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:40:51,494 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 237 [2019-09-10 02:40:51,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:51,494 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:40:51,494 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:40:51,494 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:40:51,495 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:40:51,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:40:51 BoogieIcfgContainer [2019-09-10 02:40:51,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:40:51,503 INFO L168 Benchmark]: Toolchain (without parser) took 7762.37 ms. Allocated memory was 132.1 MB in the beginning and 425.7 MB in the end (delta: 293.6 MB). Free memory was 85.6 MB in the beginning and 221.1 MB in the end (delta: -135.5 MB). Peak memory consumption was 158.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:51,504 INFO L168 Benchmark]: CDTParser took 3.24 ms. Allocated memory is still 132.1 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-09-10 02:40:51,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1161.11 ms. Allocated memory was 132.1 MB in the beginning and 198.2 MB in the end (delta: 66.1 MB). Free memory was 85.4 MB in the beginning and 127.3 MB in the end (delta: -41.9 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:51,507 INFO L168 Benchmark]: Boogie Preprocessor took 288.48 ms. Allocated memory is still 198.2 MB. Free memory was 127.3 MB in the beginning and 118.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:51,509 INFO L168 Benchmark]: RCFGBuilder took 2538.69 ms. Allocated memory was 198.2 MB in the beginning and 269.0 MB in the end (delta: 70.8 MB). Free memory was 118.3 MB in the beginning and 157.1 MB in the end (delta: -38.7 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:51,514 INFO L168 Benchmark]: TraceAbstraction took 3768.14 ms. Allocated memory was 269.0 MB in the beginning and 425.7 MB in the end (delta: 156.8 MB). Free memory was 157.1 MB in the beginning and 221.1 MB in the end (delta: -64.0 MB). Peak memory consumption was 92.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:51,524 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.24 ms. Allocated memory is still 132.1 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1161.11 ms. Allocated memory was 132.1 MB in the beginning and 198.2 MB in the end (delta: 66.1 MB). Free memory was 85.4 MB in the beginning and 127.3 MB in the end (delta: -41.9 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 288.48 ms. Allocated memory is still 198.2 MB. Free memory was 127.3 MB in the beginning and 118.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2538.69 ms. Allocated memory was 198.2 MB in the beginning and 269.0 MB in the end (delta: 70.8 MB). Free memory was 118.3 MB in the beginning and 157.1 MB in the end (delta: -38.7 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3768.14 ms. Allocated memory was 269.0 MB in the beginning and 425.7 MB in the end (delta: 156.8 MB). Free memory was 157.1 MB in the beginning and 221.1 MB in the end (delta: -64.0 MB). Peak memory consumption was 92.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1169]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 118 procedures, 825 locations, 1 error locations. SAFE Result, 3.6s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4854 SDtfs, 201 SDslu, 3973 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 253 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1168occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.1271186440677967 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 5 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1608 NumberOfCodeBlocks, 1608 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1601 ConstructedInterpolants, 0 QuantifiedInterpolants, 427731 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 293/297 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...