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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:16:40,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:16:40,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:16:41,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:16:41,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:16:41,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:16:41,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:16:41,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:16:41,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:16:41,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:16:41,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:16:41,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:16:41,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:16:41,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:16:41,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:16:41,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:16:41,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:16:41,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:16:41,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:16:41,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:16:41,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:16:41,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:16:41,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:16:41,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:16:41,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:16:41,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:16:41,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:16:41,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:16:41,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:16:41,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:16:41,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:16:41,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:16:41,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:16:41,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:16:41,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:16:41,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:16:41,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:16:41,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:16:41,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:16:41,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:16:41,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:16:41,066 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:16:41,100 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:16:41,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:16:41,104 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:16:41,104 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:16:41,104 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:16:41,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:16:41,104 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:16:41,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:16:41,105 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:16:41,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:16:41,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:16:41,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:16:41,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:16:41,106 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:16:41,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:16:41,109 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:16:41,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:16:41,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:16:41,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:16:41,110 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:16:41,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:16:41,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:16:41,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:16:41,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:16:41,113 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:16:41,113 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:16:41,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:16:41,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:16:41,114 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:16:41,404 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:16:41,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:16:41,426 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:16:41,427 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:16:41,428 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:16:41,428 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product33.cil.c [2019-10-13 21:16:41,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7c11a12c/529f89573d594ee8ada413694bdab9a6/FLAGb12eeebca [2019-10-13 21:16:42,118 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:16:42,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product33.cil.c [2019-10-13 21:16:42,140 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7c11a12c/529f89573d594ee8ada413694bdab9a6/FLAGb12eeebca [2019-10-13 21:16:42,268 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7c11a12c/529f89573d594ee8ada413694bdab9a6 [2019-10-13 21:16:42,276 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:16:42,277 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:16:42,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:16:42,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:16:42,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:16:42,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:16:42" (1/1) ... [2019-10-13 21:16:42,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2322f431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:42, skipping insertion in model container [2019-10-13 21:16:42,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:16:42" (1/1) ... [2019-10-13 21:16:42,289 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:16:42,374 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:16:43,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:16:43,180 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:16:43,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:16:43,493 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:16:43,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:43 WrapperNode [2019-10-13 21:16:43,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:16:43,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:16:43,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:16:43,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:16:43,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:43" (1/1) ... [2019-10-13 21:16:43,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:43" (1/1) ... [2019-10-13 21:16:43,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:43" (1/1) ... [2019-10-13 21:16:43,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:43" (1/1) ... [2019-10-13 21:16:43,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:43" (1/1) ... [2019-10-13 21:16:43,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:43" (1/1) ... [2019-10-13 21:16:43,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:43" (1/1) ... [2019-10-13 21:16:43,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:16:43,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:16:43,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:16:43,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:16:43,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:43" (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 [2019-10-13 21:16:43,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:16:43,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:16:43,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:16:43,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:16:43,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:16:43,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:16:43,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:16:43,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:16:43,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:16:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:16:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:16:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:16:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:16:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:16:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:16:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:16:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:16:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:16:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:16:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:16:43,830 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:16:43,830 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:16:43,830 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:16:43,831 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:16:43,831 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:16:43,831 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:16:43,831 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:16:43,831 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:16:43,831 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:16:43,832 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:16:43,832 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:16:43,832 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:16:43,832 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:16:43,832 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:16:43,832 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:16:43,833 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:16:43,833 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:16:43,833 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:16:43,833 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:16:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:16:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:16:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:16:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:16:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:16:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:16:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:16:43,835 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:16:43,835 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:16:43,835 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:16:43,835 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:16:43,835 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:16:43,835 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:16:43,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:16:43,836 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:16:43,836 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:16:43,836 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:16:43,836 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:16:43,836 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:16:43,837 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:16:43,837 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:16:43,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:16:43,837 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:16:43,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:16:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:16:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:16:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:16:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:16:43,839 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:16:43,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:16:43,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:16:43,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:16:43,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:16:43,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:16:43,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:16:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:16:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:16:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:16:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:16:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:16:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:16:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:16:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:16:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:16:43,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:16:43,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:16:43,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:16:43,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:16:43,846 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:16:43,846 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-13 21:16:43,846 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 21:16:43,846 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:16:43,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:16:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:16:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:16:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:16:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:16:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-13 21:16:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:16:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:16:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:16:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:16:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:16:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:16:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:16:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:16:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:16:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:16:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:16:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:16:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:16:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:16:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:16:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:16:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:16:43,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:16:43,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:16:43,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:16:43,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:16:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:16:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:16:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:16:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:16:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:16:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:16:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:16:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:16:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:16:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:16:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:16:43,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:16:43,854 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:16:43,854 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:16:43,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:16:43,855 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:16:43,855 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:16:43,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:16:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:16:43,859 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:16:43,859 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:16:43,859 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:16:43,860 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:16:43,860 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:16:43,860 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:16:43,861 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:16:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:16:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:16:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:16:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:16:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:16:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:16:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:16:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:16:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:16:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:16:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:16:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:16:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:16:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:16:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:16:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:16:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:16:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:16:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:16:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:16:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:16:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:16:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:16:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:16:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:16:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:16:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:16:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:16:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:16:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:16:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:16:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:16:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:16:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:16:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:16:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:16:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:16:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:16:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:16:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:16:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:16:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:16:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:16:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:16:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:16:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:16:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:16:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:16:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:16:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:16:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:16:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:16:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:16:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:16:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:16:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:16:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:16:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:16:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:16:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:16:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:16:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:16:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:16:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:16:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:16:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:16:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:16:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:16:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:16:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-13 21:16:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:16:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:16:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:16:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:16:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:16:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:16:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:16:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:16:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:16:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:16:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:16:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:16:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:16:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:16:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:16:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:16:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:16:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:16:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:16:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:16:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:16:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:16:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:16:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:16:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-13 21:16:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 21:16:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:16:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:16:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:16:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:16:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:16:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:16:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:16:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:16:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:16:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:16:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:16:46,091 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:16:46,091 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:16:46,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:16:46 BoogieIcfgContainer [2019-10-13 21:16:46,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:16:46,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:16:46,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:16:46,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:16:46,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:16:42" (1/3) ... [2019-10-13 21:16:46,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60fec786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:16:46, skipping insertion in model container [2019-10-13 21:16:46,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:16:43" (2/3) ... [2019-10-13 21:16:46,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60fec786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:16:46, skipping insertion in model container [2019-10-13 21:16:46,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:16:46" (3/3) ... [2019-10-13 21:16:46,103 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product33.cil.c [2019-10-13 21:16:46,117 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:16:46,127 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:16:46,139 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:16:46,180 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:16:46,180 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:16:46,181 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:16:46,181 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:16:46,181 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:16:46,181 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:16:46,181 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:16:46,181 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:16:46,218 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states. [2019-10-13 21:16:46,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-13 21:16:46,250 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:46,252 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:16:46,254 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:46,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:46,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1597170516, now seen corresponding path program 1 times [2019-10-13 21:16:46,270 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:46,271 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689167662] [2019-10-13 21:16:46,271 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:46,271 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:46,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:46,999 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:16:47,000 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689167662] [2019-10-13 21:16:47,001 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:47,002 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:16:47,002 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520996220] [2019-10-13 21:16:47,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:16:47,010 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:47,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:16:47,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:16:47,027 INFO L87 Difference]: Start difference. First operand 590 states. Second operand 2 states. [2019-10-13 21:16:47,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:47,137 INFO L93 Difference]: Finished difference Result 911 states and 1196 transitions. [2019-10-13 21:16:47,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:16:47,139 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 164 [2019-10-13 21:16:47,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:47,169 INFO L225 Difference]: With dead ends: 911 [2019-10-13 21:16:47,169 INFO L226 Difference]: Without dead ends: 567 [2019-10-13 21:16:47,176 INFO L600 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 [2019-10-13 21:16:47,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2019-10-13 21:16:47,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2019-10-13 21:16:47,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2019-10-13 21:16:47,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 749 transitions. [2019-10-13 21:16:47,280 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 749 transitions. Word has length 164 [2019-10-13 21:16:47,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:47,283 INFO L462 AbstractCegarLoop]: Abstraction has 567 states and 749 transitions. [2019-10-13 21:16:47,283 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:16:47,283 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 749 transitions. [2019-10-13 21:16:47,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 21:16:47,294 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:47,295 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:16:47,295 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:47,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:47,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1060723953, now seen corresponding path program 1 times [2019-10-13 21:16:47,296 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:47,296 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57029064] [2019-10-13 21:16:47,297 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:47,297 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:47,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:47,545 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:16:47,545 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57029064] [2019-10-13 21:16:47,545 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:47,546 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:16:47,546 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627302243] [2019-10-13 21:16:47,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:16:47,553 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:47,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:16:47,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:16:47,554 INFO L87 Difference]: Start difference. First operand 567 states and 749 transitions. Second operand 3 states. [2019-10-13 21:16:47,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:47,639 INFO L93 Difference]: Finished difference Result 894 states and 1164 transitions. [2019-10-13 21:16:47,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:16:47,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-13 21:16:47,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:47,648 INFO L225 Difference]: With dead ends: 894 [2019-10-13 21:16:47,648 INFO L226 Difference]: Without dead ends: 570 [2019-10-13 21:16:47,652 INFO L600 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 [2019-10-13 21:16:47,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2019-10-13 21:16:47,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 569. [2019-10-13 21:16:47,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 569 states. [2019-10-13 21:16:47,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 751 transitions. [2019-10-13 21:16:47,745 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 751 transitions. Word has length 165 [2019-10-13 21:16:47,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:47,746 INFO L462 AbstractCegarLoop]: Abstraction has 569 states and 751 transitions. [2019-10-13 21:16:47,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:16:47,747 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 751 transitions. [2019-10-13 21:16:47,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-13 21:16:47,750 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:47,750 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:16:47,751 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:47,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:47,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1599570176, now seen corresponding path program 1 times [2019-10-13 21:16:47,751 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:47,751 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265037139] [2019-10-13 21:16:47,752 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:47,752 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:47,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:47,963 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:16:47,964 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265037139] [2019-10-13 21:16:47,964 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:47,964 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:16:47,964 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20457700] [2019-10-13 21:16:47,966 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:16:47,968 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:47,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:16:47,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:16:47,969 INFO L87 Difference]: Start difference. First operand 569 states and 751 transitions. Second operand 3 states. [2019-10-13 21:16:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:48,011 INFO L93 Difference]: Finished difference Result 1116 states and 1503 transitions. [2019-10-13 21:16:48,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:16:48,012 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-10-13 21:16:48,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:48,021 INFO L225 Difference]: With dead ends: 1116 [2019-10-13 21:16:48,021 INFO L226 Difference]: Without dead ends: 612 [2019-10-13 21:16:48,023 INFO L600 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 [2019-10-13 21:16:48,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2019-10-13 21:16:48,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 611. [2019-10-13 21:16:48,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2019-10-13 21:16:48,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 823 transitions. [2019-10-13 21:16:48,056 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 823 transitions. Word has length 177 [2019-10-13 21:16:48,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:48,057 INFO L462 AbstractCegarLoop]: Abstraction has 611 states and 823 transitions. [2019-10-13 21:16:48,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:16:48,057 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 823 transitions. [2019-10-13 21:16:48,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-13 21:16:48,063 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:48,064 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:16:48,064 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:48,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:48,064 INFO L82 PathProgramCache]: Analyzing trace with hash 161290847, now seen corresponding path program 1 times [2019-10-13 21:16:48,065 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:48,066 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540917945] [2019-10-13 21:16:48,066 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:48,066 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:48,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:48,241 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:16:48,241 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540917945] [2019-10-13 21:16:48,242 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:48,242 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:16:48,242 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093958486] [2019-10-13 21:16:48,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:16:48,243 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:48,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:16:48,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:16:48,244 INFO L87 Difference]: Start difference. First operand 611 states and 823 transitions. Second operand 3 states. [2019-10-13 21:16:48,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:48,286 INFO L93 Difference]: Finished difference Result 1239 states and 1714 transitions. [2019-10-13 21:16:48,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:16:48,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-13 21:16:48,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:48,292 INFO L225 Difference]: With dead ends: 1239 [2019-10-13 21:16:48,293 INFO L226 Difference]: Without dead ends: 693 [2019-10-13 21:16:48,295 INFO L600 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 [2019-10-13 21:16:48,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2019-10-13 21:16:48,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 692. [2019-10-13 21:16:48,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2019-10-13 21:16:48,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 961 transitions. [2019-10-13 21:16:48,330 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 961 transitions. Word has length 178 [2019-10-13 21:16:48,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:48,331 INFO L462 AbstractCegarLoop]: Abstraction has 692 states and 961 transitions. [2019-10-13 21:16:48,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:16:48,331 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 961 transitions. [2019-10-13 21:16:48,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-13 21:16:48,335 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:48,335 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-13 21:16:48,336 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:48,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:48,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1626643826, now seen corresponding path program 1 times [2019-10-13 21:16:48,336 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:48,337 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7818302] [2019-10-13 21:16:48,337 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:48,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:48,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:48,607 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:16:48,607 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7818302] [2019-10-13 21:16:48,607 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:48,608 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:16:48,608 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735853825] [2019-10-13 21:16:48,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:16:48,609 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:48,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:16:48,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:16:48,610 INFO L87 Difference]: Start difference. First operand 692 states and 961 transitions. Second operand 7 states. [2019-10-13 21:16:51,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:51,930 INFO L93 Difference]: Finished difference Result 1332 states and 1783 transitions. [2019-10-13 21:16:51,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:16:51,931 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2019-10-13 21:16:51,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:51,939 INFO L225 Difference]: With dead ends: 1332 [2019-10-13 21:16:51,939 INFO L226 Difference]: Without dead ends: 1019 [2019-10-13 21:16:51,941 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:16:51,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2019-10-13 21:16:51,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1010. [2019-10-13 21:16:51,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1010 states. [2019-10-13 21:16:51,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1370 transitions. [2019-10-13 21:16:51,989 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1370 transitions. Word has length 181 [2019-10-13 21:16:51,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:51,990 INFO L462 AbstractCegarLoop]: Abstraction has 1010 states and 1370 transitions. [2019-10-13 21:16:51,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:16:51,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1370 transitions. [2019-10-13 21:16:51,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-13 21:16:51,994 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:51,994 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-13 21:16:51,994 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:51,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:51,995 INFO L82 PathProgramCache]: Analyzing trace with hash 475123241, now seen corresponding path program 1 times [2019-10-13 21:16:51,995 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:51,995 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275634429] [2019-10-13 21:16:51,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:51,996 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:51,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:52,387 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:16:52,387 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275634429] [2019-10-13 21:16:52,388 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:52,388 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-13 21:16:52,388 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216005277] [2019-10-13 21:16:52,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 21:16:52,389 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:52,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 21:16:52,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:16:52,390 INFO L87 Difference]: Start difference. First operand 1010 states and 1370 transitions. Second operand 18 states. [2019-10-13 21:16:52,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:52,836 INFO L93 Difference]: Finished difference Result 1719 states and 2293 transitions. [2019-10-13 21:16:52,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 21:16:52,837 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 182 [2019-10-13 21:16:52,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:52,844 INFO L225 Difference]: With dead ends: 1719 [2019-10-13 21:16:52,844 INFO L226 Difference]: Without dead ends: 1060 [2019-10-13 21:16:52,847 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:16:52,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2019-10-13 21:16:52,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1056. [2019-10-13 21:16:52,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2019-10-13 21:16:52,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1435 transitions. [2019-10-13 21:16:52,901 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1435 transitions. Word has length 182 [2019-10-13 21:16:52,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:52,903 INFO L462 AbstractCegarLoop]: Abstraction has 1056 states and 1435 transitions. [2019-10-13 21:16:52,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 21:16:52,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1435 transitions. [2019-10-13 21:16:52,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-13 21:16:52,907 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:52,907 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-13 21:16:52,907 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:52,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:52,908 INFO L82 PathProgramCache]: Analyzing trace with hash -264639391, now seen corresponding path program 1 times [2019-10-13 21:16:52,908 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:52,908 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550045965] [2019-10-13 21:16:52,908 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:52,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:52,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:53,114 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:16:53,114 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550045965] [2019-10-13 21:16:53,114 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:53,115 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:16:53,115 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332076032] [2019-10-13 21:16:53,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:16:53,116 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:53,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:16:53,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:16:53,116 INFO L87 Difference]: Start difference. First operand 1056 states and 1435 transitions. Second operand 8 states. [2019-10-13 21:16:54,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:54,190 INFO L93 Difference]: Finished difference Result 1925 states and 2576 transitions. [2019-10-13 21:16:54,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 21:16:54,190 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 191 [2019-10-13 21:16:54,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:54,210 INFO L225 Difference]: With dead ends: 1925 [2019-10-13 21:16:54,211 INFO L226 Difference]: Without dead ends: 1766 [2019-10-13 21:16:54,213 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:16:54,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2019-10-13 21:16:54,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1753. [2019-10-13 21:16:54,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1753 states. [2019-10-13 21:16:54,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1753 states to 1753 states and 2350 transitions. [2019-10-13 21:16:54,343 INFO L78 Accepts]: Start accepts. Automaton has 1753 states and 2350 transitions. Word has length 191 [2019-10-13 21:16:54,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:54,347 INFO L462 AbstractCegarLoop]: Abstraction has 1753 states and 2350 transitions. [2019-10-13 21:16:54,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:16:54,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1753 states and 2350 transitions. [2019-10-13 21:16:54,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-13 21:16:54,351 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:54,351 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:16:54,352 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:54,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:54,352 INFO L82 PathProgramCache]: Analyzing trace with hash 339589513, now seen corresponding path program 1 times [2019-10-13 21:16:54,352 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:54,353 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801041824] [2019-10-13 21:16:54,353 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:54,353 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:54,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:54,750 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-13 21:16:54,750 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801041824] [2019-10-13 21:16:54,750 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:16:54,750 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-10-13 21:16:54,751 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269541454] [2019-10-13 21:16:54,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-13 21:16:54,751 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:54,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-13 21:16:54,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2019-10-13 21:16:54,752 INFO L87 Difference]: Start difference. First operand 1753 states and 2350 transitions. Second operand 17 states. [2019-10-13 21:16:55,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:55,598 INFO L93 Difference]: Finished difference Result 2402 states and 3183 transitions. [2019-10-13 21:16:55,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 21:16:55,599 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 192 [2019-10-13 21:16:55,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:55,617 INFO L225 Difference]: With dead ends: 2402 [2019-10-13 21:16:55,617 INFO L226 Difference]: Without dead ends: 1752 [2019-10-13 21:16:55,623 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=829, Unknown=0, NotChecked=0, Total=930 [2019-10-13 21:16:55,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2019-10-13 21:16:55,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1751. [2019-10-13 21:16:55,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1751 states. [2019-10-13 21:16:55,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2345 transitions. [2019-10-13 21:16:55,747 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2345 transitions. Word has length 192 [2019-10-13 21:16:55,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:55,748 INFO L462 AbstractCegarLoop]: Abstraction has 1751 states and 2345 transitions. [2019-10-13 21:16:55,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-13 21:16:55,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2345 transitions. [2019-10-13 21:16:55,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-13 21:16:55,755 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:55,756 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:16:55,756 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:55,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:55,757 INFO L82 PathProgramCache]: Analyzing trace with hash 985079459, now seen corresponding path program 2 times [2019-10-13 21:16:55,757 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:55,757 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946398276] [2019-10-13 21:16:55,757 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:55,758 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:55,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:55,994 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-13 21:16:55,995 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946398276] [2019-10-13 21:16:55,996 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041607730] [2019-10-13 21:16:55,996 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:16:56,442 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-13 21:16:56,443 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 21:16:56,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 2070 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-13 21:16:56,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:16:56,787 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-13 21:16:56,787 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:16:57,242 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-13 21:16:57,243 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:16:57,243 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [11] total 23 [2019-10-13 21:16:57,243 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570757005] [2019-10-13 21:16:57,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 21:16:57,245 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:57,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 21:16:57,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-10-13 21:16:57,246 INFO L87 Difference]: Start difference. First operand 1751 states and 2345 transitions. Second operand 14 states. [2019-10-13 21:17:00,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:00,180 INFO L93 Difference]: Finished difference Result 5205 states and 7022 transitions. [2019-10-13 21:17:00,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-13 21:17:00,183 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 192 [2019-10-13 21:17:00,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:00,219 INFO L225 Difference]: With dead ends: 5205 [2019-10-13 21:17:00,219 INFO L226 Difference]: Without dead ends: 5198 [2019-10-13 21:17:00,226 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 378 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=178, Invalid=1228, Unknown=0, NotChecked=0, Total=1406 [2019-10-13 21:17:00,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5198 states. [2019-10-13 21:17:00,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5198 to 3801. [2019-10-13 21:17:00,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3801 states. [2019-10-13 21:17:00,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3801 states to 3801 states and 5205 transitions. [2019-10-13 21:17:00,506 INFO L78 Accepts]: Start accepts. Automaton has 3801 states and 5205 transitions. Word has length 192 [2019-10-13 21:17:00,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:00,508 INFO L462 AbstractCegarLoop]: Abstraction has 3801 states and 5205 transitions. [2019-10-13 21:17:00,508 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 21:17:00,508 INFO L276 IsEmpty]: Start isEmpty. Operand 3801 states and 5205 transitions. [2019-10-13 21:17:00,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-13 21:17:00,519 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:00,519 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:00,736 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:17:00,736 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:00,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:00,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1277649621, now seen corresponding path program 1 times [2019-10-13 21:17:00,737 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:00,737 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902211786] [2019-10-13 21:17:00,738 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:00,738 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:00,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:01,031 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-13 21:17:01,032 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902211786] [2019-10-13 21:17:01,032 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164560624] [2019-10-13 21:17:01,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:17:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:01,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 2767 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:17:01,613 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:17:01,813 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 21:17:01,813 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:17:02,165 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:17:02,251 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:17:02,330 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:17:02,433 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-13 21:17:02,433 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:17:02,433 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11, 9] total 24 [2019-10-13 21:17:02,434 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91914600] [2019-10-13 21:17:02,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:17:02,434 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:02,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:17:02,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2019-10-13 21:17:02,435 INFO L87 Difference]: Start difference. First operand 3801 states and 5205 transitions. Second operand 9 states. [2019-10-13 21:17:05,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:05,004 INFO L93 Difference]: Finished difference Result 7576 states and 10384 transitions. [2019-10-13 21:17:05,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:17:05,004 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 194 [2019-10-13 21:17:05,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:05,028 INFO L225 Difference]: With dead ends: 7576 [2019-10-13 21:17:05,029 INFO L226 Difference]: Without dead ends: 3819 [2019-10-13 21:17:05,041 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 372 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2019-10-13 21:17:05,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3819 states. [2019-10-13 21:17:05,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3819 to 3819. [2019-10-13 21:17:05,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3819 states. [2019-10-13 21:17:05,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3819 states to 3819 states and 5226 transitions. [2019-10-13 21:17:05,259 INFO L78 Accepts]: Start accepts. Automaton has 3819 states and 5226 transitions. Word has length 194 [2019-10-13 21:17:05,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:05,259 INFO L462 AbstractCegarLoop]: Abstraction has 3819 states and 5226 transitions. [2019-10-13 21:17:05,259 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:17:05,259 INFO L276 IsEmpty]: Start isEmpty. Operand 3819 states and 5226 transitions. [2019-10-13 21:17:05,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-13 21:17:05,271 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:05,272 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2019-10-13 21:17:05,482 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:17:05,482 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:05,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:05,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1095064192, now seen corresponding path program 1 times [2019-10-13 21:17:05,484 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:05,484 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266044592] [2019-10-13 21:17:05,484 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:05,485 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:05,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:05,813 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-13 21:17:05,814 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266044592] [2019-10-13 21:17:05,814 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645846947] [2019-10-13 21:17:05,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:17:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:06,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 2768 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:17:06,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:17:06,666 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 21:17:06,666 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:17:06,945 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:17:06,998 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:17:07,066 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-13 21:17:07,066 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:17:07,067 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 7] total 20 [2019-10-13 21:17:07,067 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072651664] [2019-10-13 21:17:07,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:17:07,068 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:07,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:17:07,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2019-10-13 21:17:07,069 INFO L87 Difference]: Start difference. First operand 3819 states and 5226 transitions. Second operand 7 states. [2019-10-13 21:17:08,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:08,226 INFO L93 Difference]: Finished difference Result 7546 states and 10345 transitions. [2019-10-13 21:17:08,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:17:08,226 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2019-10-13 21:17:08,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:08,248 INFO L225 Difference]: With dead ends: 7546 [2019-10-13 21:17:08,248 INFO L226 Difference]: Without dead ends: 3819 [2019-10-13 21:17:08,261 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 379 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2019-10-13 21:17:08,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3819 states. [2019-10-13 21:17:08,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3819 to 3819. [2019-10-13 21:17:08,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3819 states. [2019-10-13 21:17:08,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3819 states to 3819 states and 5212 transitions. [2019-10-13 21:17:08,459 INFO L78 Accepts]: Start accepts. Automaton has 3819 states and 5212 transitions. Word has length 195 [2019-10-13 21:17:08,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:08,460 INFO L462 AbstractCegarLoop]: Abstraction has 3819 states and 5212 transitions. [2019-10-13 21:17:08,460 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:17:08,460 INFO L276 IsEmpty]: Start isEmpty. Operand 3819 states and 5212 transitions. [2019-10-13 21:17:08,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-13 21:17:08,470 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:08,471 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-13 21:17:08,679 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:17:08,680 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:08,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:08,681 INFO L82 PathProgramCache]: Analyzing trace with hash 947632913, now seen corresponding path program 1 times [2019-10-13 21:17:08,681 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:08,681 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436039119] [2019-10-13 21:17:08,681 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:08,681 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:08,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:08,945 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-13 21:17:08,946 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436039119] [2019-10-13 21:17:08,946 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856360084] [2019-10-13 21:17:08,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:17:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:09,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 2763 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:17:09,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:17:09,727 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 21:17:09,727 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:17:10,014 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:17:10,056 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:17:10,096 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-13 21:17:10,097 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:17:10,097 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 16 [2019-10-13 21:17:10,097 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828661093] [2019-10-13 21:17:10,100 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:17:10,100 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:10,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:17:10,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2019-10-13 21:17:10,101 INFO L87 Difference]: Start difference. First operand 3819 states and 5212 transitions. Second operand 7 states. [2019-10-13 21:17:11,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:11,882 INFO L93 Difference]: Finished difference Result 7262 states and 9851 transitions. [2019-10-13 21:17:11,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:17:11,882 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2019-10-13 21:17:11,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:11,903 INFO L225 Difference]: With dead ends: 7262 [2019-10-13 21:17:11,903 INFO L226 Difference]: Without dead ends: 3831 [2019-10-13 21:17:11,913 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 381 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:17:11,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3831 states. [2019-10-13 21:17:12,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3831 to 3819. [2019-10-13 21:17:12,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3819 states. [2019-10-13 21:17:12,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3819 states to 3819 states and 5210 transitions. [2019-10-13 21:17:12,084 INFO L78 Accepts]: Start accepts. Automaton has 3819 states and 5210 transitions. Word has length 196 [2019-10-13 21:17:12,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:12,085 INFO L462 AbstractCegarLoop]: Abstraction has 3819 states and 5210 transitions. [2019-10-13 21:17:12,085 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:17:12,085 INFO L276 IsEmpty]: Start isEmpty. Operand 3819 states and 5210 transitions. [2019-10-13 21:17:12,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-13 21:17:12,093 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:12,094 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:12,304 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:17:12,304 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:12,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:12,305 INFO L82 PathProgramCache]: Analyzing trace with hash -491268191, now seen corresponding path program 1 times [2019-10-13 21:17:12,305 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:12,305 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067614490] [2019-10-13 21:17:12,305 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:12,305 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:12,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:12,422 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-13 21:17:12,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067614490] [2019-10-13 21:17:12,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824300375] [2019-10-13 21:17:12,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:17:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:12,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 2761 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:17:13,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:17:13,178 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 21:17:13,179 INFO L321 TraceCheckSpWp]: Computing backward predicates...