/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 16:16:58,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 16:16:58,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 16:16:58,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 16:16:58,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 16:16:58,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 16:16:58,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 16:16:58,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 16:16:58,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 16:16:58,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 16:16:58,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 16:16:58,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 16:16:58,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 16:16:58,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 16:16:58,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 16:16:58,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 16:16:58,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 16:16:58,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 16:16:58,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 16:16:58,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 16:16:58,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 16:16:58,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 16:16:58,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 16:16:58,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 16:16:58,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 16:16:58,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 16:16:58,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 16:16:58,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 16:16:58,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 16:16:58,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 16:16:58,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 16:16:58,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 16:16:58,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 16:16:58,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 16:16:58,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 16:16:58,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 16:16:58,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 16:16:58,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 16:16:58,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 16:16:58,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 16:16:58,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 16:16:58,856 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 16:16:58,902 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 16:16:58,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 16:16:58,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 16:16:58,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 16:16:58,905 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 16:16:58,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 16:16:58,906 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 16:16:58,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 16:16:58,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 16:16:58,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 16:16:58,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 16:16:58,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 16:16:58,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 16:16:58,908 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 16:16:58,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 16:16:58,909 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 16:16:58,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 16:16:58,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 16:16:58,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 16:16:58,909 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 16:16:58,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 16:16:58,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 16:16:58,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 16:16:58,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 16:16:58,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 16:16:58,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 16:16:58,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 16:16:58,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 16:16:58,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 16:16:58,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-08-21 16:16:59,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 16:16:59,246 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 16:16:59,249 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 16:16:59,251 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 16:16:59,251 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 16:16:59,252 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-21 16:16:59,324 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b8c749b4/1a9d1c610da14d53ad2056009355a79a/FLAGcfec66a33 [2020-08-21 16:16:59,966 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 16:16:59,969 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-21 16:17:00,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b8c749b4/1a9d1c610da14d53ad2056009355a79a/FLAGcfec66a33 [2020-08-21 16:17:00,267 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b8c749b4/1a9d1c610da14d53ad2056009355a79a [2020-08-21 16:17:00,276 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 16:17:00,277 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 16:17:00,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 16:17:00,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 16:17:00,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 16:17:00,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 04:17:00" (1/1) ... [2020-08-21 16:17:00,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca632cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:17:00, skipping insertion in model container [2020-08-21 16:17:00,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 04:17:00" (1/1) ... [2020-08-21 16:17:00,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 16:17:00,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 16:17:00,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 16:17:00,983 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 16:17:01,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 16:17:01,210 INFO L208 MainTranslator]: Completed translation [2020-08-21 16:17:01,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:17:01 WrapperNode [2020-08-21 16:17:01,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 16:17:01,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 16:17:01,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 16:17:01,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 16:17:01,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:17:01" (1/1) ... [2020-08-21 16:17:01,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:17:01" (1/1) ... [2020-08-21 16:17:01,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:17:01" (1/1) ... [2020-08-21 16:17:01,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:17:01" (1/1) ... [2020-08-21 16:17:01,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:17:01" (1/1) ... [2020-08-21 16:17:01,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:17:01" (1/1) ... [2020-08-21 16:17:01,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:17:01" (1/1) ... [2020-08-21 16:17:01,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 16:17:01,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 16:17:01,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 16:17:01,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 16:17:01,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:17:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-21 16:17:01,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 16:17:01,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 16:17:01,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 16:17:01,483 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-21 16:17:01,483 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-21 16:17:01,483 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-21 16:17:01,484 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-21 16:17:01,484 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-21 16:17:01,484 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 16:17:01,485 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 16:17:01,485 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-21 16:17:01,486 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 16:17:01,486 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 16:17:01,486 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 16:17:01,487 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 16:17:01,488 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 16:17:01,488 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-21 16:17:01,488 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-21 16:17:01,489 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-21 16:17:01,489 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-21 16:17:01,489 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-21 16:17:01,490 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-21 16:17:01,490 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-21 16:17:01,490 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-21 16:17:01,491 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-21 16:17:01,492 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-21 16:17:01,492 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-21 16:17:01,493 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-21 16:17:01,493 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-21 16:17:01,493 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-21 16:17:01,493 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-21 16:17:01,494 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-21 16:17:01,494 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-21 16:17:01,494 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-21 16:17:01,494 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-21 16:17:01,495 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-21 16:17:01,495 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-21 16:17:01,495 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-21 16:17:01,495 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-21 16:17:01,495 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-21 16:17:01,496 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-21 16:17:01,496 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-21 16:17:01,496 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-21 16:17:01,496 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-21 16:17:01,496 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-21 16:17:01,496 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-21 16:17:01,497 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-21 16:17:01,497 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-21 16:17:01,497 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-21 16:17:01,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-21 16:17:01,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 16:17:01,498 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-21 16:17:01,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 16:17:01,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 16:17:01,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 16:17:01,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 16:17:01,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 16:17:01,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 16:17:01,500 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-21 16:17:01,500 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-21 16:17:01,500 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-21 16:17:01,500 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-21 16:17:01,500 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-21 16:17:01,501 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-21 16:17:01,501 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-21 16:17:01,501 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-21 16:17:01,501 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-21 16:17:01,502 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-21 16:17:01,502 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-21 16:17:01,502 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-21 16:17:01,502 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-21 16:17:01,503 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-21 16:17:01,503 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-21 16:17:01,504 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-21 16:17:01,504 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-21 16:17:01,506 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-21 16:17:01,506 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-21 16:17:01,506 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-21 16:17:01,506 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-21 16:17:01,507 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-21 16:17:01,507 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-21 16:17:01,508 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-21 16:17:01,509 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-21 16:17:01,509 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-21 16:17:01,509 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-21 16:17:01,509 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-21 16:17:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-21 16:17:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-21 16:17:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-21 16:17:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-21 16:17:01,511 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-21 16:17:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 16:17:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 16:17:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 16:17:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-21 16:17:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-21 16:17:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-21 16:17:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 16:17:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 16:17:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 16:17:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-21 16:17:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-21 16:17:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-21 16:17:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-21 16:17:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-21 16:17:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-21 16:17:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-21 16:17:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-21 16:17:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-21 16:17:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-21 16:17:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 16:17:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 16:17:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 16:17:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-21 16:17:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 16:17:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 16:17:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-21 16:17:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-21 16:17:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-21 16:17:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-21 16:17:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-21 16:17:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-21 16:17:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-21 16:17:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-21 16:17:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-21 16:17:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-21 16:17:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-21 16:17:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-21 16:17:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-21 16:17:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-21 16:17:01,524 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-21 16:17:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-21 16:17:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-21 16:17:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-21 16:17:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-21 16:17:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-21 16:17:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-21 16:17:01,530 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-21 16:17:01,530 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-21 16:17:01,530 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-21 16:17:01,530 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-21 16:17:01,530 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-21 16:17:01,531 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-21 16:17:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-21 16:17:01,540 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-21 16:17:01,540 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-21 16:17:01,540 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-21 16:17:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-21 16:17:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-21 16:17:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 16:17:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-21 16:17:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-21 16:17:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 16:17:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 16:17:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 16:17:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 16:17:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 16:17:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 16:17:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 16:17:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 16:17:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 16:17:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 16:17:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 16:17:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 16:17:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 16:17:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 16:17:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 16:17:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 16:17:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-21 16:17:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-21 16:17:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-21 16:17:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-21 16:17:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-21 16:17:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-21 16:17:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-21 16:17:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-21 16:17:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-21 16:17:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-21 16:17:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-21 16:17:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-21 16:17:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-21 16:17:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-21 16:17:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-21 16:17:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-21 16:17:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-21 16:17:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-21 16:17:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-21 16:17:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-21 16:17:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-21 16:17:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-21 16:17:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-21 16:17:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-21 16:17:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-21 16:17:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-21 16:17:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 16:17:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 16:17:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 16:17:03,538 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 16:17:03,539 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-21 16:17:03,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 04:17:03 BoogieIcfgContainer [2020-08-21 16:17:03,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 16:17:03,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 16:17:03,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 16:17:03,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 16:17:03,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 04:17:00" (1/3) ... [2020-08-21 16:17:03,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b16c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 04:17:03, skipping insertion in model container [2020-08-21 16:17:03,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:17:01" (2/3) ... [2020-08-21 16:17:03,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b16c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 04:17:03, skipping insertion in model container [2020-08-21 16:17:03,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 04:17:03" (3/3) ... [2020-08-21 16:17:03,554 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-21 16:17:03,566 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 16:17:03,576 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 16:17:03,591 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 16:17:03,619 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 16:17:03,619 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 16:17:03,619 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 16:17:03,619 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 16:17:03,620 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 16:17:03,620 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 16:17:03,620 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 16:17:03,620 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 16:17:03,645 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-21 16:17:03,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-21 16:17:03,659 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:17:03,660 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-08-21 16:17:03,660 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:17:03,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:17:03,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-21 16:17:03,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:17:03,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [819252335] [2020-08-21 16:17:03,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:17:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,656 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 16:17:05,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:17:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 16:17:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 16:17:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 16:17:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 16:17:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 16:17:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-21 16:17:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-21 16:17:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:05,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 16:17:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-21 16:17:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-21 16:17:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-21 16:17:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-21 16:17:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-21 16:17:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:05,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-21 16:17:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:06,059 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 16:17:06,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [819252335] [2020-08-21 16:17:06,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:17:06,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-21 16:17:06,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617009284] [2020-08-21 16:17:06,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 16:17:06,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:17:06,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 16:17:06,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 16:17:06,089 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-21 16:17:08,175 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 16:17:09,695 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 16:17:10,907 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 16:17:12,144 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 16:17:18,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:17:18,041 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-21 16:17:18,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-21 16:17:18,050 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-21 16:17:18,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:17:18,077 INFO L225 Difference]: With dead ends: 573 [2020-08-21 16:17:18,078 INFO L226 Difference]: Without dead ends: 340 [2020-08-21 16:17:18,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-08-21 16:17:18,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-21 16:17:18,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-21 16:17:18,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-21 16:17:18,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-21 16:17:18,216 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-21 16:17:18,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:17:18,217 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-21 16:17:18,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 16:17:18,217 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-21 16:17:18,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-21 16:17:18,221 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:17:18,222 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:17:18,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 16:17:18,222 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:17:18,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:17:18,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-21 16:17:18,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:17:18,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2059993205] [2020-08-21 16:17:18,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:17:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,434 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 16:17:19,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:17:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 16:17:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 16:17:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 16:17:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 16:17:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 16:17:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 16:17:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-21 16:17:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 16:17:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-21 16:17:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-21 16:17:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 16:17:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 16:17:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-21 16:17:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-21 16:17:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:19,797 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 16:17:19,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2059993205] [2020-08-21 16:17:19,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 16:17:19,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 16:17:19,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104751473] [2020-08-21 16:17:19,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 16:17:19,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:17:19,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 16:17:19,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 16:17:19,801 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-21 16:17:21,506 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 16:17:23,037 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 16:17:24,225 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 16:17:25,409 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 16:17:29,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:17:29,927 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-21 16:17:29,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 16:17:29,927 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-21 16:17:29,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:17:29,932 INFO L225 Difference]: With dead ends: 509 [2020-08-21 16:17:29,932 INFO L226 Difference]: Without dead ends: 346 [2020-08-21 16:17:29,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-21 16:17:29,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-21 16:17:30,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-21 16:17:30,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 16:17:30,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-21 16:17:30,034 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-21 16:17:30,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:17:30,034 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-21 16:17:30,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 16:17:30,035 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-21 16:17:30,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-21 16:17:30,038 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:17:30,038 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:17:30,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 16:17:30,038 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:17:30,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:17:30,039 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-21 16:17:30,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:17:30,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [634125524] [2020-08-21 16:17:30,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:17:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,273 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 16:17:31,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:17:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 16:17:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 16:17:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 16:17:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 16:17:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 16:17:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 16:17:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 16:17:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:31,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 16:17:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-21 16:17:31,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 16:17:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-21 16:17:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-21 16:17:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:31,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 16:17:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-21 16:17:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:31,705 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 16:17:31,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [634125524] [2020-08-21 16:17:31,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 16:17:31,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 16:17:31,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244333087] [2020-08-21 16:17:31,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 16:17:31,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:17:31,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 16:17:31,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 16:17:31,711 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-21 16:17:33,659 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 16:17:35,186 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 16:17:36,385 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 16:17:37,522 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 16:17:41,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:17:41,720 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-21 16:17:41,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 16:17:41,721 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-21 16:17:41,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:17:41,724 INFO L225 Difference]: With dead ends: 509 [2020-08-21 16:17:41,725 INFO L226 Difference]: Without dead ends: 348 [2020-08-21 16:17:41,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-21 16:17:41,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-21 16:17:41,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-21 16:17:41,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 16:17:41,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-21 16:17:41,824 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-21 16:17:41,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:17:41,824 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-21 16:17:41,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 16:17:41,824 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-21 16:17:41,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-21 16:17:41,827 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:17:41,827 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:17:41,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 16:17:41,828 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:17:41,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:17:41,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-21 16:17:41,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:17:41,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411038323] [2020-08-21 16:17:41,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:17:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,275 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 16:17:43,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:17:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 16:17:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 16:17:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 16:17:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 16:17:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 16:17:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 16:17:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-21 16:17:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 16:17:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-21 16:17:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-21 16:17:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 16:17:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 16:17:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-21 16:17:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-21 16:17:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:43,511 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-21 16:17:43,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411038323] [2020-08-21 16:17:43,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 16:17:43,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 16:17:43,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501451127] [2020-08-21 16:17:43,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 16:17:43,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:17:43,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 16:17:43,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-21 16:17:43,515 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-21 16:17:45,851 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 16:17:49,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:17:49,763 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-21 16:17:49,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 16:17:49,764 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-21 16:17:49,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:17:49,767 INFO L225 Difference]: With dead ends: 463 [2020-08-21 16:17:49,767 INFO L226 Difference]: Without dead ends: 347 [2020-08-21 16:17:49,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-08-21 16:17:49,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-21 16:17:49,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-21 16:17:49,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-21 16:17:49,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-21 16:17:49,847 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-21 16:17:49,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:17:49,848 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-21 16:17:49,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 16:17:49,848 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-21 16:17:49,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-21 16:17:49,850 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:17:49,850 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:17:49,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 16:17:49,851 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:17:49,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:17:49,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-21 16:17:49,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:17:49,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [928336494] [2020-08-21 16:17:49,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:17:49,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:50,998 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 16:17:50,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:17:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 16:17:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 16:17:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 16:17:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 16:17:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 16:17:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 16:17:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-21 16:17:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 16:17:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 16:17:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 16:17:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 16:17:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-21 16:17:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-21 16:17:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-21 16:17:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:51,193 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-21 16:17:51,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [928336494] [2020-08-21 16:17:51,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:17:51,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 16:17:51,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106140919] [2020-08-21 16:17:51,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 16:17:51,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:17:51,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 16:17:51,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-21 16:17:51,196 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-21 16:17:53,192 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 16:17:54,379 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 16:17:58,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:17:58,465 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-08-21 16:17:58,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 16:17:58,466 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-08-21 16:17:58,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:17:58,469 INFO L225 Difference]: With dead ends: 495 [2020-08-21 16:17:58,469 INFO L226 Difference]: Without dead ends: 379 [2020-08-21 16:17:58,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-08-21 16:17:58,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-08-21 16:17:58,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 241. [2020-08-21 16:17:58,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-21 16:17:58,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2020-08-21 16:17:58,598 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 134 [2020-08-21 16:17:58,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:17:58,599 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2020-08-21 16:17:58,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 16:17:58,599 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2020-08-21 16:17:58,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-21 16:17:58,601 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:17:58,601 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:17:58,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 16:17:58,602 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:17:58,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:17:58,602 INFO L82 PathProgramCache]: Analyzing trace with hash 903324488, now seen corresponding path program 2 times [2020-08-21 16:17:58,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:17:58,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071649706] [2020-08-21 16:17:58,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:17:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:59,816 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 16:17:59,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:17:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:59,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 16:17:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:59,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 16:17:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:59,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 16:17:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:59,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 16:17:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:59,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:59,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:59,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 16:17:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:59,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:59,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 16:17:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:59,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:17:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:17:59,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 16:17:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:18:00,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:18:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:18:00,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 16:18:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:18:00,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 16:18:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:18:00,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-21 16:18:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:18:00,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-21 16:18:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:18:00,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-08-21 16:18:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:18:00,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 16:18:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:18:00,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-21 16:18:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:18:00,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-21 16:18:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:18:00,074 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-21 16:18:00,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071649706] [2020-08-21 16:18:00,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 16:18:00,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 16:18:00,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127610490] [2020-08-21 16:18:00,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 16:18:00,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:18:00,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 16:18:00,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-08-21 16:18:00,077 INFO L87 Difference]: Start difference. First operand 241 states and 313 transitions. Second operand 12 states. [2020-08-21 16:18:01,650 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 502