/usr/bin/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_spec3_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:51:37,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:51:37,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:51:37,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:51:37,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:51:37,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:51:37,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:51:37,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:51:37,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:51:37,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:51:37,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:51:37,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:51:37,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:51:37,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:51:37,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:51:37,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:51:37,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:51:37,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:51:37,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:51:37,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:51:37,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:51:37,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:51:37,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:51:37,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:51:37,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:51:37,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:51:37,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:51:37,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:51:37,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:51:37,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:51:37,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:51:37,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:51:37,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:51:37,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:51:37,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:51:37,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:51:37,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:51:37,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:51:37,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:51:37,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:51:37,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:51:37,789 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 [2019-11-07 00:51:37,804 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:51:37,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:51:37,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:51:37,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:51:37,806 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:51:37,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:51:37,807 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:51:37,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:51:37,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:51:37,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:51:37,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:51:37,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:51:37,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:51:37,808 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:51:37,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:51:37,808 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:51:37,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:51:37,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:51:37,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:51:37,809 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:51:37,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:51:37,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:51:37,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:51:37,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:51:37,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:51:37,810 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:51:37,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:51:37,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:51:37,811 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 [2019-11-07 00:51:38,101 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:51:38,114 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:51:38,118 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:51:38,119 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:51:38,120 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:51:38,120 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product35.cil.c [2019-11-07 00:51:38,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f8d510bf/3a5068a1e3834cb2895b66b9b5671844/FLAGd8d30fa87 [2019-11-07 00:51:38,820 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:51:38,821 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product35.cil.c [2019-11-07 00:51:38,858 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f8d510bf/3a5068a1e3834cb2895b66b9b5671844/FLAGd8d30fa87 [2019-11-07 00:51:39,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f8d510bf/3a5068a1e3834cb2895b66b9b5671844 [2019-11-07 00:51:39,025 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:51:39,026 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:51:39,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:51:39,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:51:39,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:51:39,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:51:39" (1/1) ... [2019-11-07 00:51:39,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f4a1e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:39, skipping insertion in model container [2019-11-07 00:51:39,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:51:39" (1/1) ... [2019-11-07 00:51:39,043 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:51:39,118 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:51:39,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:51:39,813 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:51:39,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:51:40,044 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:51:40,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:40 WrapperNode [2019-11-07 00:51:40,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:51:40,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:51:40,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:51:40,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:51:40,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:40" (1/1) ... [2019-11-07 00:51:40,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:40" (1/1) ... [2019-11-07 00:51:40,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:40" (1/1) ... [2019-11-07 00:51:40,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:40" (1/1) ... [2019-11-07 00:51:40,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:40" (1/1) ... [2019-11-07 00:51:40,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:40" (1/1) ... [2019-11-07 00:51:40,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:40" (1/1) ... [2019-11-07 00:51:40,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:51:40,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:51:40,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:51:40,234 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:51:40,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:40" (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 [2019-11-07 00:51:40,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:51:40,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:51:40,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:51:40,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:51:40,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:51:40,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:51:40,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:51:40,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:51:40,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:51:40,305 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:51:40,305 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:51:40,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:51:40,306 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:51:40,306 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:51:40,306 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:51:40,307 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:51:40,307 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:51:40,307 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:51:40,307 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:51:40,307 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:51:40,307 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:51:40,308 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:51:40,308 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 00:51:40,308 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 00:51:40,308 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 00:51:40,308 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:51:40,309 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:51:40,309 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:51:40,309 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-11-07 00:51:40,309 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:51:40,309 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:51:40,310 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 00:51:40,310 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 00:51:40,310 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 00:51:40,310 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 00:51:40,310 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:51:40,311 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:51:40,311 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:51:40,311 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:51:40,311 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:51:40,311 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:51:40,311 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:51:40,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:51:40,312 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:51:40,312 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 00:51:40,312 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 00:51:40,312 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:51:40,312 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 00:51:40,312 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:51:40,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-11-07 00:51:40,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-11-07 00:51:40,313 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:51:40,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:51:40,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:51:40,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:51:40,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:51:40,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:51:40,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:51:40,314 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:51:40,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:51:40,314 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:51:40,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:51:40,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:51:40,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:51:40,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:51:40,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:51:40,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:51:40,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:51:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:51:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:51:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:51:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:51:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:51:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:51:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:51:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:51:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:51:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:51:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:51:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:51:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:51:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:51:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:51:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:51:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:51:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:51:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:51:40,319 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:51:40,319 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:51:40,319 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:51:40,319 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:51:40,319 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:51:40,319 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:51:40,319 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:51:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:51:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:51:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:51:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:51:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:51:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:51:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:51:40,321 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:51:40,321 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-11-07 00:51:40,321 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 00:51:40,321 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:51:40,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:51:40,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:51:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:51:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:51:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:51:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:51:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:51:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:51:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:51:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:51:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:51:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:51:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:51:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:51:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:51:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:51:40,324 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:51:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:51:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:51:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:51:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:51:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:51:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:51:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:51:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:51:40,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:51:40,326 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:51:40,326 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:51:40,326 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:51:40,326 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:51:40,326 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:51:40,326 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:51:40,327 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:51:40,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:51:40,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:51:40,327 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:51:40,327 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:51:40,327 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:51:40,328 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:51:40,328 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:51:40,328 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:51:40,328 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:51:40,328 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:51:40,329 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:51:40,329 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:51:40,329 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:51:40,329 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:51:40,329 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:51:40,330 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:51:40,330 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:51:40,330 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:51:40,330 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:51:40,330 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:51:40,330 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:51:40,331 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:51:40,331 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:51:40,331 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:51:40,331 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:51:40,331 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:51:40,331 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 00:51:40,332 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 00:51:40,332 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 00:51:40,332 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:51:40,332 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:51:40,332 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:51:40,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:51:40,333 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:51:40,333 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:51:40,333 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:51:40,333 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:51:40,333 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:51:40,333 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:51:40,334 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:51:40,334 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:51:40,334 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:51:40,334 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:51:40,334 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:51:40,334 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:51:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:51:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:51:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:51:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:51:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:51:40,335 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:51:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:51:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:51:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:51:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:51:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:51:40,336 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:51:40,337 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:51:40,337 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:51:40,337 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:51:40,337 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:51:40,337 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:51:40,337 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:51:40,337 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 00:51:40,338 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 00:51:40,338 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:51:40,338 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 00:51:40,338 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:51:40,338 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-11-07 00:51:40,338 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:51:40,339 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:51:40,339 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-11-07 00:51:40,339 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 00:51:40,339 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 00:51:40,339 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 00:51:40,339 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 00:51:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-11-07 00:51:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:51:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:51:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:51:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:51:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:51:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:51:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:51:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:51:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:51:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:51:40,342 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:51:40,342 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:51:40,342 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:51:40,342 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:51:40,342 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:51:40,342 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:51:40,343 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:51:40,343 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:51:40,343 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:51:40,343 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:51:40,343 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-11-07 00:51:40,343 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 00:51:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:51:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:51:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:51:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:51:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:51:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:51:40,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:51:40,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:51:40,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:51:40,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:51:40,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:51:40,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:51:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:51:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:51:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:51:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:51:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:51:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:51:40,347 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:51:40,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:51:40,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:51:40,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:51:42,527 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:51:42,527 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:51:42,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:51:42 BoogieIcfgContainer [2019-11-07 00:51:42,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:51:42,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:51:42,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:51:42,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:51:42,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:51:39" (1/3) ... [2019-11-07 00:51:42,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d131b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:51:42, skipping insertion in model container [2019-11-07 00:51:42,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:40" (2/3) ... [2019-11-07 00:51:42,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d131b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:51:42, skipping insertion in model container [2019-11-07 00:51:42,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:51:42" (3/3) ... [2019-11-07 00:51:42,542 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product35.cil.c [2019-11-07 00:51:42,560 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:51:42,573 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:51:42,585 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:51:42,632 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:51:42,633 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:51:42,633 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:51:42,633 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:51:42,633 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:51:42,633 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:51:42,633 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:51:42,633 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:51:42,676 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states. [2019-11-07 00:51:42,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-11-07 00:51:42,712 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:42,713 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:42,718 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:42,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:42,725 INFO L82 PathProgramCache]: Analyzing trace with hash -743915879, now seen corresponding path program 1 times [2019-11-07 00:51:42,735 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:42,735 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235361648] [2019-11-07 00:51:42,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:43,467 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-11-07 00:51:43,469 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235361648] [2019-11-07 00:51:43,469 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:51:43,470 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:51:43,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692233886] [2019-11-07 00:51:43,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:51:43,480 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:43,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:51:43,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:51:43,497 INFO L87 Difference]: Start difference. First operand 695 states. Second operand 2 states. [2019-11-07 00:51:43,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:43,587 INFO L93 Difference]: Finished difference Result 1065 states and 1438 transitions. [2019-11-07 00:51:43,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:51:43,590 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 204 [2019-11-07 00:51:43,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:43,624 INFO L225 Difference]: With dead ends: 1065 [2019-11-07 00:51:43,624 INFO L226 Difference]: Without dead ends: 666 [2019-11-07 00:51:43,636 INFO L630 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 [2019-11-07 00:51:43,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2019-11-07 00:51:43,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 666. [2019-11-07 00:51:43,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 666 states. [2019-11-07 00:51:43,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 902 transitions. [2019-11-07 00:51:43,778 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 902 transitions. Word has length 204 [2019-11-07 00:51:43,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:43,780 INFO L462 AbstractCegarLoop]: Abstraction has 666 states and 902 transitions. [2019-11-07 00:51:43,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:51:43,781 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 902 transitions. [2019-11-07 00:51:43,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-11-07 00:51:43,787 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:43,787 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:43,788 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:43,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:43,788 INFO L82 PathProgramCache]: Analyzing trace with hash 880668841, now seen corresponding path program 1 times [2019-11-07 00:51:43,788 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:43,788 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357852237] [2019-11-07 00:51:43,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:44,159 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-11-07 00:51:44,160 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357852237] [2019-11-07 00:51:44,160 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:51:44,160 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:51:44,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438333547] [2019-11-07 00:51:44,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:51:44,181 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:44,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:51:44,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:51:44,182 INFO L87 Difference]: Start difference. First operand 666 states and 902 transitions. Second operand 3 states. [2019-11-07 00:51:44,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:44,274 INFO L93 Difference]: Finished difference Result 1048 states and 1398 transitions. [2019-11-07 00:51:44,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:51:44,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-11-07 00:51:44,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:44,281 INFO L225 Difference]: With dead ends: 1048 [2019-11-07 00:51:44,281 INFO L226 Difference]: Without dead ends: 669 [2019-11-07 00:51:44,284 INFO L630 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 [2019-11-07 00:51:44,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2019-11-07 00:51:44,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 668. [2019-11-07 00:51:44,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2019-11-07 00:51:44,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 904 transitions. [2019-11-07 00:51:44,321 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 904 transitions. Word has length 205 [2019-11-07 00:51:44,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:44,321 INFO L462 AbstractCegarLoop]: Abstraction has 668 states and 904 transitions. [2019-11-07 00:51:44,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:51:44,322 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 904 transitions. [2019-11-07 00:51:44,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-11-07 00:51:44,328 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:44,328 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:44,329 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:44,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:44,329 INFO L82 PathProgramCache]: Analyzing trace with hash -293016614, now seen corresponding path program 1 times [2019-11-07 00:51:44,330 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:44,330 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103958901] [2019-11-07 00:51:44,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:44,671 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-11-07 00:51:44,672 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103958901] [2019-11-07 00:51:44,672 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:51:44,672 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:51:44,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359089921] [2019-11-07 00:51:44,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:51:44,673 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:44,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:51:44,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:51:44,675 INFO L87 Difference]: Start difference. First operand 668 states and 904 transitions. Second operand 3 states. [2019-11-07 00:51:44,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:44,727 INFO L93 Difference]: Finished difference Result 1316 states and 1812 transitions. [2019-11-07 00:51:44,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:51:44,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2019-11-07 00:51:44,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:44,736 INFO L225 Difference]: With dead ends: 1316 [2019-11-07 00:51:44,736 INFO L226 Difference]: Without dead ends: 713 [2019-11-07 00:51:44,739 INFO L630 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 [2019-11-07 00:51:44,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2019-11-07 00:51:44,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 712. [2019-11-07 00:51:44,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2019-11-07 00:51:44,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 979 transitions. [2019-11-07 00:51:44,781 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 979 transitions. Word has length 217 [2019-11-07 00:51:44,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:44,784 INFO L462 AbstractCegarLoop]: Abstraction has 712 states and 979 transitions. [2019-11-07 00:51:44,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:51:44,784 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 979 transitions. [2019-11-07 00:51:44,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-11-07 00:51:44,792 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:44,792 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:44,792 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:44,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:44,794 INFO L82 PathProgramCache]: Analyzing trace with hash 373909830, now seen corresponding path program 1 times [2019-11-07 00:51:44,794 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:44,794 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499559670] [2019-11-07 00:51:44,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:45,028 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-11-07 00:51:45,028 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499559670] [2019-11-07 00:51:45,028 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:51:45,029 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:51:45,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897260231] [2019-11-07 00:51:45,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:51:45,030 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:45,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:51:45,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:51:45,031 INFO L87 Difference]: Start difference. First operand 712 states and 979 transitions. Second operand 3 states. [2019-11-07 00:51:45,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:45,086 INFO L93 Difference]: Finished difference Result 1445 states and 2032 transitions. [2019-11-07 00:51:45,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:51:45,087 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2019-11-07 00:51:45,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:45,097 INFO L225 Difference]: With dead ends: 1445 [2019-11-07 00:51:45,097 INFO L226 Difference]: Without dead ends: 798 [2019-11-07 00:51:45,101 INFO L630 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 [2019-11-07 00:51:45,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2019-11-07 00:51:45,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 797. [2019-11-07 00:51:45,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2019-11-07 00:51:45,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1123 transitions. [2019-11-07 00:51:45,140 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1123 transitions. Word has length 218 [2019-11-07 00:51:45,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:45,141 INFO L462 AbstractCegarLoop]: Abstraction has 797 states and 1123 transitions. [2019-11-07 00:51:45,141 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:51:45,141 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1123 transitions. [2019-11-07 00:51:45,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-11-07 00:51:45,149 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:45,150 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:45,150 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:45,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:45,151 INFO L82 PathProgramCache]: Analyzing trace with hash -2072189759, now seen corresponding path program 1 times [2019-11-07 00:51:45,151 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:45,152 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496000461] [2019-11-07 00:51:45,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:45,843 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:51:45,844 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496000461] [2019-11-07 00:51:45,844 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550653668] [2019-11-07 00:51:45,844 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-07 00:51:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:46,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 3276 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 00:51:46,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:51:46,927 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-07 00:51:46,928 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:51:47,332 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:51:47,456 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:47,546 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:47,701 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-07 00:51:47,702 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 00:51:47,702 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [19, 9] total 32 [2019-11-07 00:51:47,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415645916] [2019-11-07 00:51:47,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 00:51:47,703 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:47,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 00:51:47,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=906, Unknown=0, NotChecked=0, Total=992 [2019-11-07 00:51:47,704 INFO L87 Difference]: Start difference. First operand 797 states and 1123 transitions. Second operand 9 states. [2019-11-07 00:51:50,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:50,644 INFO L93 Difference]: Finished difference Result 1572 states and 2226 transitions. [2019-11-07 00:51:50,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 00:51:50,644 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 221 [2019-11-07 00:51:50,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:50,649 INFO L225 Difference]: With dead ends: 1572 [2019-11-07 00:51:50,650 INFO L226 Difference]: Without dead ends: 811 [2019-11-07 00:51:50,653 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 431 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=107, Invalid=1083, Unknown=0, NotChecked=0, Total=1190 [2019-11-07 00:51:50,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2019-11-07 00:51:50,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 811. [2019-11-07 00:51:50,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2019-11-07 00:51:50,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1141 transitions. [2019-11-07 00:51:50,688 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1141 transitions. Word has length 221 [2019-11-07 00:51:50,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:50,689 INFO L462 AbstractCegarLoop]: Abstraction has 811 states and 1141 transitions. [2019-11-07 00:51:50,689 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 00:51:50,689 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1141 transitions. [2019-11-07 00:51:50,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-11-07 00:51:50,694 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:50,694 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:50,911 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:51:50,912 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:50,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:50,913 INFO L82 PathProgramCache]: Analyzing trace with hash 619120565, now seen corresponding path program 1 times [2019-11-07 00:51:50,913 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:50,913 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547952232] [2019-11-07 00:51:50,914 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:51,418 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:51:51,418 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547952232] [2019-11-07 00:51:51,419 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455234752] [2019-11-07 00:51:51,419 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 [2019-11-07 00:51:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:52,169 INFO L256 TraceCheckSpWp]: Trace formula consists of 3277 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-07 00:51:52,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:51:52,376 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-07 00:51:52,376 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:51:52,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:52,766 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:52,827 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-07 00:51:52,827 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 00:51:52,828 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19, 7] total 28 [2019-11-07 00:51:52,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880356184] [2019-11-07 00:51:52,829 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 00:51:52,829 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:52,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 00:51:52,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2019-11-07 00:51:52,830 INFO L87 Difference]: Start difference. First operand 811 states and 1141 transitions. Second operand 7 states. [2019-11-07 00:51:55,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:55,026 INFO L93 Difference]: Finished difference Result 1573 states and 2232 transitions. [2019-11-07 00:51:55,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:51:55,027 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 222 [2019-11-07 00:51:55,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:55,033 INFO L225 Difference]: With dead ends: 1573 [2019-11-07 00:51:55,033 INFO L226 Difference]: Without dead ends: 813 [2019-11-07 00:51:55,036 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 438 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=784, Unknown=0, NotChecked=0, Total=870 [2019-11-07 00:51:55,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2019-11-07 00:51:55,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 813. [2019-11-07 00:51:55,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 813 states. [2019-11-07 00:51:55,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1144 transitions. [2019-11-07 00:51:55,078 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1144 transitions. Word has length 222 [2019-11-07 00:51:55,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:55,078 INFO L462 AbstractCegarLoop]: Abstraction has 813 states and 1144 transitions. [2019-11-07 00:51:55,078 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 00:51:55,078 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1144 transitions. [2019-11-07 00:51:55,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2019-11-07 00:51:55,085 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:55,086 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:55,286 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:51:55,287 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:55,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:55,287 INFO L82 PathProgramCache]: Analyzing trace with hash -609631398, now seen corresponding path program 1 times [2019-11-07 00:51:55,287 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:55,287 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077657467] [2019-11-07 00:51:55,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:55,692 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:51:55,693 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077657467] [2019-11-07 00:51:55,693 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242254770] [2019-11-07 00:51:55,693 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 [2019-11-07 00:51:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:56,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 3278 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 00:51:56,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:51:56,730 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-11-07 00:51:56,730 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:51:57,068 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:51:57,152 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:57,231 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:57,394 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-07 00:51:57,394 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 00:51:57,394 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [19] total 33 [2019-11-07 00:51:57,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374467251] [2019-11-07 00:51:57,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-07 00:51:57,396 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:57,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-07 00:51:57,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=961, Unknown=0, NotChecked=0, Total=1056 [2019-11-07 00:51:57,397 INFO L87 Difference]: Start difference. First operand 813 states and 1144 transitions. Second operand 16 states. [2019-11-07 00:51:59,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:59,432 INFO L93 Difference]: Finished difference Result 1577 states and 2230 transitions. [2019-11-07 00:51:59,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 00:51:59,433 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 223 [2019-11-07 00:51:59,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:59,446 INFO L225 Difference]: With dead ends: 1577 [2019-11-07 00:51:59,446 INFO L226 Difference]: Without dead ends: 825 [2019-11-07 00:51:59,451 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 435 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=1205, Unknown=0, NotChecked=0, Total=1332 [2019-11-07 00:51:59,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2019-11-07 00:51:59,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 823. [2019-11-07 00:51:59,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2019-11-07 00:51:59,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1155 transitions. [2019-11-07 00:51:59,566 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1155 transitions. Word has length 223 [2019-11-07 00:51:59,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:59,568 INFO L462 AbstractCegarLoop]: Abstraction has 823 states and 1155 transitions. [2019-11-07 00:51:59,568 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-07 00:51:59,568 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1155 transitions. [2019-11-07 00:51:59,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-11-07 00:51:59,577 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:59,578 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:59,789 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:51:59,790 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:59,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:59,790 INFO L82 PathProgramCache]: Analyzing trace with hash 586173408, now seen corresponding path program 2 times [2019-11-07 00:51:59,791 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:59,793 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896153023] [2019-11-07 00:51:59,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:52:00,328 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-07 00:52:00,328 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896153023] [2019-11-07 00:52:00,329 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593334761] [2019-11-07 00:52:00,329 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 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 [2019-11-07 00:52:00,999 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-11-07 00:52:00,999 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-07 00:52:01,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 2533 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-07 00:52:01,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:52:01,257 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-11-07 00:52:01,257 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:52:01,752 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:52:01,753 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 00:52:01,753 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [19] total 31 [2019-11-07 00:52:01,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866679563] [2019-11-07 00:52:01,754 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 00:52:01,754 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:52:01,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 00:52:01,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2019-11-07 00:52:01,755 INFO L87 Difference]: Start difference. First operand 823 states and 1155 transitions. Second operand 14 states. [2019-11-07 00:52:04,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:52:04,980 INFO L93 Difference]: Finished difference Result 2767 states and 3920 transitions. [2019-11-07 00:52:04,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-07 00:52:04,981 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 224 [2019-11-07 00:52:04,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:52:05,001 INFO L225 Difference]: With dead ends: 2767 [2019-11-07 00:52:05,002 INFO L226 Difference]: Without dead ends: 2401 [2019-11-07 00:52:05,005 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 446 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=201, Invalid=1869, Unknown=0, NotChecked=0, Total=2070 [2019-11-07 00:52:05,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2019-11-07 00:52:05,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 1986. [2019-11-07 00:52:05,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1986 states. [2019-11-07 00:52:05,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 2880 transitions. [2019-11-07 00:52:05,142 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 2880 transitions. Word has length 224 [2019-11-07 00:52:05,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:52:05,144 INFO L462 AbstractCegarLoop]: Abstraction has 1986 states and 2880 transitions. [2019-11-07 00:52:05,144 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 00:52:05,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 2880 transitions. [2019-11-07 00:52:05,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-11-07 00:52:05,176 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:52:05,177 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:52:05,384 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:52:05,385 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:52:05,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:52:05,385 INFO L82 PathProgramCache]: Analyzing trace with hash 789276184, now seen corresponding path program 1 times [2019-11-07 00:52:05,387 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:52:05,387 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361606754] [2019-11-07 00:52:05,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:52:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:52:05,673 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-07 00:52:05,673 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361606754] [2019-11-07 00:52:05,673 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142716017] [2019-11-07 00:52:05,674 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 [2019-11-07 00:52:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:52:06,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 3280 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 00:52:06,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:52:06,582 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-11-07 00:52:06,583 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:52:06,982 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:52:07,059 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:52:07,141 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:52:07,279 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-07 00:52:07,279 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 00:52:07,279 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [15] total 28 [2019-11-07 00:52:07,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995837141] [2019-11-07 00:52:07,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-07 00:52:07,281 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:52:07,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-07 00:52:07,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2019-11-07 00:52:07,284 INFO L87 Difference]: Start difference. First operand 1986 states and 2880 transitions. Second operand 15 states. [2019-11-07 00:52:09,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:52:09,634 INFO L93 Difference]: Finished difference Result 3866 states and 5636 transitions. [2019-11-07 00:52:09,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 00:52:09,634 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 225 [2019-11-07 00:52:09,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:52:09,649 INFO L225 Difference]: With dead ends: 3866 [2019-11-07 00:52:09,649 INFO L226 Difference]: Without dead ends: 1992 [2019-11-07 00:52:09,656 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 439 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2019-11-07 00:52:09,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1992 states. [2019-11-07 00:52:09,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1992 to 1986. [2019-11-07 00:52:09,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1986 states. [2019-11-07 00:52:09,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 2878 transitions. [2019-11-07 00:52:09,758 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 2878 transitions. Word has length 225 [2019-11-07 00:52:09,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:52:09,759 INFO L462 AbstractCegarLoop]: Abstraction has 1986 states and 2878 transitions. [2019-11-07 00:52:09,759 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-07 00:52:09,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 2878 transitions. [2019-11-07 00:52:09,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-11-07 00:52:09,768 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:52:09,768 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:52:09,978 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:52:09,978 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:52:09,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:52:09,979 INFO L82 PathProgramCache]: Analyzing trace with hash -139161799, now seen corresponding path program 1 times [2019-11-07 00:52:09,979 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:52:09,980 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164548097] [2019-11-07 00:52:09,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:52:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:52:10,337 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-07 00:52:10,337 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164548097] [2019-11-07 00:52:10,337 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727407120] [2019-11-07 00:52:10,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:52:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:52:11,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 3281 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-07 00:52:11,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:52:11,201 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-11-07 00:52:11,201 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:52:11,461 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:52:11,513 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:52:11,576 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:52:11,577 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 00:52:11,577 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [15] total 25 [2019-11-07 00:52:11,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436716626] [2019-11-07 00:52:11,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 00:52:11,578 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:52:11,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 00:52:11,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2019-11-07 00:52:11,579 INFO L87 Difference]: Start difference. First operand 1986 states and 2878 transitions. Second operand 12 states.