/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 --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/net_reset.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:29:04,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:29:04,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:29:05,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:29:05,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:29:05,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:29:05,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:29:05,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:29:05,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:29:05,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:29:05,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:29:05,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:29:05,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:29:05,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:29:05,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:29:05,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:29:05,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:29:05,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:29:05,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:29:05,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:29:05,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:29:05,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:29:05,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:29:05,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:29:05,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:29:05,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:29:05,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:29:05,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:29:05,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:29:05,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:29:05,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:29:05,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:29:05,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:29:05,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:29:05,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:29:05,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:29:05,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:29:05,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:29:05,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:29:05,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:29:05,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:29:05,111 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 [2020-09-25 03:29:05,160 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:29:05,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:29:05,162 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:29:05,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:29:05,163 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:29:05,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:29:05,163 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:29:05,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:29:05,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:29:05,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:29:05,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:29:05,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:29:05,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:29:05,166 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:29:05,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:29:05,166 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:29:05,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:29:05,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:29:05,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:29:05,167 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:29:05,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:29:05,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:29:05,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:29:05,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:29:05,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:29:05,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:29:05,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:29:05,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:29:05,169 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:29:05,169 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.rcfgbuilder: Size of a code block -> SingleStatement 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 -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 03:29:05,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:29:05,628 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:29:05,633 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:29:05,635 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:29:05,635 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:29:05,637 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/net_reset.c [2020-09-25 03:29:05,726 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/def48ac02/2c4842b122e04a2baf0ac5f72a489f0c/FLAG044a112be [2020-09-25 03:29:06,270 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:29:06,271 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/net_reset.c [2020-09-25 03:29:06,281 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/def48ac02/2c4842b122e04a2baf0ac5f72a489f0c/FLAG044a112be [2020-09-25 03:29:06,598 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/def48ac02/2c4842b122e04a2baf0ac5f72a489f0c [2020-09-25 03:29:06,612 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:29:06,618 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:29:06,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:29:06,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:29:06,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:29:06,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:29:06" (1/1) ... [2020-09-25 03:29:06,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e65116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:06, skipping insertion in model container [2020-09-25 03:29:06,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:29:06" (1/1) ... [2020-09-25 03:29:06,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:29:06,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:29:07,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:29:08,087 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:29:08,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:29:08,192 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:29:08,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:08 WrapperNode [2020-09-25 03:29:08,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:29:08,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:29:08,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:29:08,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:29:08,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:08" (1/1) ... [2020-09-25 03:29:08,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:08" (1/1) ... [2020-09-25 03:29:08,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:08" (1/1) ... [2020-09-25 03:29:08,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:08" (1/1) ... [2020-09-25 03:29:08,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:08" (1/1) ... [2020-09-25 03:29:08,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:08" (1/1) ... [2020-09-25 03:29:08,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:08" (1/1) ... [2020-09-25 03:29:08,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:29:08,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:29:08,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:29:08,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:29:08,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:08" (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 [2020-09-25 03:29:08,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:29:08,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:29:08,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 03:29:08,388 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reset [2020-09-25 03:29:08,388 INFO L138 BoogieDeclarations]: Found implementation of procedure net_send_batch [2020-09-25 03:29:08,389 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reopen [2020-09-25 03:29:08,389 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:29:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:29:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure net_reset [2020-09-25 03:29:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure net_reopen [2020-09-25 03:29:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure net_send_batch [2020-09-25 03:29:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure addrcmp [2020-09-25 03:29:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 03:29:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 03:29:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:29:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:29:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:29:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:29:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 03:29:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:29:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:29:08,849 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:29:08,849 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 03:29:08,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:29:08 BoogieIcfgContainer [2020-09-25 03:29:08,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:29:08,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:29:08,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:29:08,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:29:08,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:29:06" (1/3) ... [2020-09-25 03:29:08,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2eb3aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:29:08, skipping insertion in model container [2020-09-25 03:29:08,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:08" (2/3) ... [2020-09-25 03:29:08,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2eb3aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:29:08, skipping insertion in model container [2020-09-25 03:29:08,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:29:08" (3/3) ... [2020-09-25 03:29:08,864 INFO L109 eAbstractionObserver]: Analyzing ICFG net_reset.c [2020-09-25 03:29:08,875 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:29:08,886 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:29:08,908 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:29:08,939 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:29:08,939 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:29:08,939 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:29:08,940 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:29:08,940 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:29:08,940 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:29:08,940 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:29:08,940 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:29:08,964 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-09-25 03:29:08,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-25 03:29:08,973 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:29:08,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:29:08,975 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:29:08,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:29:08,982 INFO L82 PathProgramCache]: Analyzing trace with hash 22025063, now seen corresponding path program 1 times [2020-09-25 03:29:08,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:29:08,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293827862] [2020-09-25 03:29:08,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:29:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:09,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:09,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:10,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:10,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 03:29:10,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:29:10,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 857 [2020-09-25 03:29:10,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:10,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:29:10,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 03:29:10,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:29:10,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:29:10,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:29:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:10,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:10,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:10,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:29:10,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:10,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 03:29:10,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:10,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:10,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:10,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 03:29:10,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:10,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-25 03:29:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:10,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:10,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:10,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:29:10,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:10,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 03:29:10,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:10,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:10,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:10,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:29:10,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:10,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:29:10,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293827862] [2020-09-25 03:29:10,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:29:10,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 03:29:10,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181689638] [2020-09-25 03:29:10,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:29:10,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:29:10,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:29:10,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:29:10,656 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 8 states. [2020-09-25 03:29:11,474 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-09-25 03:29:11,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:29:11,525 INFO L93 Difference]: Finished difference Result 128 states and 143 transitions. [2020-09-25 03:29:11,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:29:11,527 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2020-09-25 03:29:11,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:29:11,542 INFO L225 Difference]: With dead ends: 128 [2020-09-25 03:29:11,542 INFO L226 Difference]: Without dead ends: 80 [2020-09-25 03:29:11,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2020-09-25 03:29:11,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-25 03:29:11,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 72. [2020-09-25 03:29:11,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-25 03:29:11,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2020-09-25 03:29:11,609 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 50 [2020-09-25 03:29:11,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:29:11,610 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2020-09-25 03:29:11,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:29:11,611 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2020-09-25 03:29:11,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 03:29:11,613 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:29:11,613 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 03:29:11,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:29:11,614 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:29:11,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:29:11,615 INFO L82 PathProgramCache]: Analyzing trace with hash 2110981068, now seen corresponding path program 1 times [2020-09-25 03:29:11,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:29:11,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [322302553] [2020-09-25 03:29:11,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:29:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:11,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:11,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:11,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:12,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:12,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:13,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:13,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 03:29:13,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:29:13,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1929 [2020-09-25 03:29:13,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:13,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:29:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 03:29:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 03:29:13,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:13,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:29:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:13,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:13,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:13,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:29:13,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:13,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 03:29:13,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:13,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:13,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:13,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 03:29:13,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:13,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-25 03:29:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:13,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:13,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:13,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:29:13,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:13,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 03:29:13,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:13,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:13,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:13,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:29:13,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:13,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 03:29:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:13,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:13,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:13,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:29:13,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:13,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 03:29:13,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:13,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:13,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:13,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:29:13,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:13,916 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:29:13,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [322302553] [2020-09-25 03:29:13,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:29:13,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 03:29:13,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44032247] [2020-09-25 03:29:13,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:29:13,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:29:13,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:29:13,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:29:13,929 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand 10 states. [2020-09-25 03:29:14,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:29:14,704 INFO L93 Difference]: Finished difference Result 97 states and 103 transitions. [2020-09-25 03:29:14,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:29:14,705 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 64 [2020-09-25 03:29:14,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:29:14,707 INFO L225 Difference]: With dead ends: 97 [2020-09-25 03:29:14,707 INFO L226 Difference]: Without dead ends: 95 [2020-09-25 03:29:14,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2020-09-25 03:29:14,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-25 03:29:14,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2020-09-25 03:29:14,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-25 03:29:14,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 92 transitions. [2020-09-25 03:29:14,722 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 92 transitions. Word has length 64 [2020-09-25 03:29:14,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:29:14,723 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 92 transitions. [2020-09-25 03:29:14,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:29:14,723 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 92 transitions. [2020-09-25 03:29:14,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-25 03:29:14,726 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:29:14,726 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:29:14,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:29:14,727 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:29:14,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:29:14,727 INFO L82 PathProgramCache]: Analyzing trace with hash 369287025, now seen corresponding path program 2 times [2020-09-25 03:29:14,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:29:14,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [169742556] [2020-09-25 03:29:14,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:29:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:14,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:14,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:14,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:15,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:16,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:18,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:18,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:18,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:19,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:19,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:19,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-25 03:29:19,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 03:29:19,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 03:29:19,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:19,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:29:19,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 03:29:19,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 03:29:19,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:19,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:29:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:19,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:20,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:20,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:29:20,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:20,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 03:29:20,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:20,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:20,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:20,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 03:29:20,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:20,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-25 03:29:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:20,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:20,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:20,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:29:20,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:20,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 03:29:20,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:20,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:20,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:20,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:29:20,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:20,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 03:29:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:20,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:20,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:20,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:29:20,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:20,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 03:29:20,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:20,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:20,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:20,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:29:20,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:20,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 03:29:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:20,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:20,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:20,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:29:20,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:20,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 03:29:20,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:20,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:20,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:20,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:29:20,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 03:29:20,197 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 03:29:20,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [169742556] [2020-09-25 03:29:20,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:29:20,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 03:29:20,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555087218] [2020-09-25 03:29:20,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 03:29:20,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:29:20,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 03:29:20,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-25 03:29:20,202 INFO L87 Difference]: Start difference. First operand 87 states and 92 transitions. Second operand 12 states. [2020-09-25 03:29:21,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:29:21,082 INFO L93 Difference]: Finished difference Result 112 states and 119 transitions. [2020-09-25 03:29:21,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 03:29:21,082 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 78 [2020-09-25 03:29:21,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:29:21,086 INFO L225 Difference]: With dead ends: 112 [2020-09-25 03:29:21,086 INFO L226 Difference]: Without dead ends: 110 [2020-09-25 03:29:21,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2020-09-25 03:29:21,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-09-25 03:29:21,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 102. [2020-09-25 03:29:21,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-09-25 03:29:21,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 108 transitions. [2020-09-25 03:29:21,101 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 108 transitions. Word has length 78 [2020-09-25 03:29:21,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:29:21,102 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 108 transitions. [2020-09-25 03:29:21,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 03:29:21,102 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 108 transitions. [2020-09-25 03:29:21,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-09-25 03:29:21,104 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:29:21,104 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:29:21,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:29:21,104 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:29:21,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:29:21,105 INFO L82 PathProgramCache]: Analyzing trace with hash -834472362, now seen corresponding path program 3 times [2020-09-25 03:29:21,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:29:21,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556369784] [2020-09-25 03:29:21,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:29:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:21,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:21,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:21,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:21,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:21,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:22,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:24,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:24,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:25,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:26,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:26,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-09-25 03:29:26,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 03:29:26,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 03:29:26,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:26,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:29:26,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 03:29:26,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 03:29:26,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:26,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:29:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:26,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:26,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:26,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:29:26,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:26,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 03:29:26,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:26,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:26,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:26,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 03:29:26,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:26,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-25 03:29:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:26,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:26,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:26,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:29:26,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:26,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 03:29:26,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:26,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:29:26,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:26,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:29:26,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:26,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 03:29:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:26,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:26,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:26,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:29:26,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:26,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 03:29:26,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:26,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:26,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:26,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:29:26,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:26,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 03:29:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:26,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:26,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:26,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:29:26,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:26,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 03:29:26,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:26,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:26,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:26,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:29:26,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:26,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 03:29:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:26,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:26,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:26,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:29:26,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:26,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 03:29:26,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:26,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:29:26,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:29:26,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:29:26,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:26,592 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 03:29:26,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1556369784] [2020-09-25 03:29:26,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:29:26,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 03:29:26,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718174708] [2020-09-25 03:29:26,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:29:26,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:29:26,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:29:26,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:29:26,595 INFO L87 Difference]: Start difference. First operand 102 states and 108 transitions. Second operand 10 states. [2020-09-25 03:29:27,207 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-09-25 03:29:27,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:29:27,210 INFO L93 Difference]: Finished difference Result 102 states and 108 transitions. [2020-09-25 03:29:27,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 03:29:27,211 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 92 [2020-09-25 03:29:27,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:29:27,212 INFO L225 Difference]: With dead ends: 102 [2020-09-25 03:29:27,212 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 03:29:27,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-09-25 03:29:27,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 03:29:27,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 03:29:27,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 03:29:27,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 03:29:27,214 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 92 [2020-09-25 03:29:27,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:29:27,214 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 03:29:27,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:29:27,214 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 03:29:27,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 03:29:27,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:29:27,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 03:29:28,171 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 03:29:28,172 INFO L268 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-09-25 03:29:28,172 INFO L268 CegarLoopResult]: For program point L188-1(line 188) no Hoare annotation was computed. [2020-09-25 03:29:28,172 INFO L268 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-09-25 03:29:28,172 INFO L268 CegarLoopResult]: For program point L188-2(line 188) no Hoare annotation was computed. [2020-09-25 03:29:28,172 INFO L268 CegarLoopResult]: For program point L186-1(line 186) no Hoare annotation was computed. [2020-09-25 03:29:28,172 INFO L268 CegarLoopResult]: For program point L188-3(line 188) no Hoare annotation was computed. [2020-09-25 03:29:28,172 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-09-25 03:29:28,172 INFO L268 CegarLoopResult]: For program point L188-4(line 188) no Hoare annotation was computed. [2020-09-25 03:29:28,172 INFO L268 CegarLoopResult]: For program point L188-5(line 188) no Hoare annotation was computed. [2020-09-25 03:29:28,172 INFO L268 CegarLoopResult]: For program point L188-6(line 188) no Hoare annotation was computed. [2020-09-25 03:29:28,173 INFO L268 CegarLoopResult]: For program point L188-7(line 188) no Hoare annotation was computed. [2020-09-25 03:29:28,173 INFO L268 CegarLoopResult]: For program point L188-8(line 188) no Hoare annotation was computed. [2020-09-25 03:29:28,173 INFO L268 CegarLoopResult]: For program point L188-9(line 188) no Hoare annotation was computed. [2020-09-25 03:29:28,173 INFO L268 CegarLoopResult]: For program point L188-10(line 188) no Hoare annotation was computed. [2020-09-25 03:29:28,173 INFO L268 CegarLoopResult]: For program point L188-11(line 188) no Hoare annotation was computed. [2020-09-25 03:29:28,173 INFO L268 CegarLoopResult]: For program point L188-12(line 188) no Hoare annotation was computed. [2020-09-25 03:29:28,173 INFO L268 CegarLoopResult]: For program point L188-13(line 188) no Hoare annotation was computed. [2020-09-25 03:29:28,173 INFO L268 CegarLoopResult]: For program point L188-14(line 188) no Hoare annotation was computed. [2020-09-25 03:29:28,173 INFO L268 CegarLoopResult]: For program point L188-15(line 188) no Hoare annotation was computed. [2020-09-25 03:29:28,173 INFO L268 CegarLoopResult]: For program point L188-16(line 188) no Hoare annotation was computed. [2020-09-25 03:29:28,173 INFO L268 CegarLoopResult]: For program point L188-17(line 188) no Hoare annotation was computed. [2020-09-25 03:29:28,173 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 03:29:28,174 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 03:29:28,174 INFO L268 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-09-25 03:29:28,174 INFO L268 CegarLoopResult]: For program point L208-1(line 208) no Hoare annotation was computed. [2020-09-25 03:29:28,174 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#unspec_addr~0.base| |old(~#unspec_addr~0.base)|) (= |old(#length)| |#length|) (= ~batch_at~0 |old(~batch_at~0)|) (= |#memory_int| |old(#memory_int)|) (= ~fstTTL~0 |old(~fstTTL~0)|) (= |old(#valid)| |#valid|) (= ~__tmpTR__int_1~0 |old(~__tmpTR__int_1~0)|) (= |~#unspec_addr~0.offset| |old(~#unspec_addr~0.offset)|) (= |#t~string1.base| |old(#t~string1.base)|) (= |~#host~0.base| |old(~#host~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#host~0.offset| |old(~#host~0.offset)|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-09-25 03:29:28,174 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 03:29:28,174 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 03:29:28,175 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~fstTTL~0) (<= ~fstTTL~0 1) (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2020-09-25 03:29:28,175 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 03:29:28,175 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 03:29:28,175 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 231 235) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (not (<= ~fstTTL~0 1)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0) (= |old(~batch_at~0)| ~batch_at~0)) (not (<= 1 ~fstTTL~0))) [2020-09-25 03:29:28,175 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 231 235) no Hoare annotation was computed. [2020-09-25 03:29:28,175 INFO L268 CegarLoopResult]: For program point L233(line 233) no Hoare annotation was computed. [2020-09-25 03:29:28,175 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 231 235) no Hoare annotation was computed. [2020-09-25 03:29:28,175 INFO L264 CegarLoopResult]: At program point L232(line 232) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (not (<= ~fstTTL~0 1)) (not (<= 1 ~fstTTL~0)) (= |old(~batch_at~0)| ~batch_at~0)) [2020-09-25 03:29:28,176 INFO L268 CegarLoopResult]: For program point L232-1(line 232) no Hoare annotation was computed. [2020-09-25 03:29:28,176 INFO L268 CegarLoopResult]: For program point L232-2(line 232) no Hoare annotation was computed. [2020-09-25 03:29:28,176 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-09-25 03:29:28,176 INFO L268 CegarLoopResult]: For program point L192(lines 192 194) no Hoare annotation was computed. [2020-09-25 03:29:28,176 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 191 196) the Hoare annotation is: true [2020-09-25 03:29:28,176 INFO L268 CegarLoopResult]: For program point L192-2(lines 191 196) no Hoare annotation was computed. [2020-09-25 03:29:28,176 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 191 196) no Hoare annotation was computed. [2020-09-25 03:29:28,176 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2020-09-25 03:29:28,177 INFO L268 CegarLoopResult]: For program point net_reopenEXIT(lines 214 229) no Hoare annotation was computed. [2020-09-25 03:29:28,177 INFO L268 CegarLoopResult]: For program point L221(line 221) no Hoare annotation was computed. [2020-09-25 03:29:28,177 INFO L268 CegarLoopResult]: For program point L221-1(line 221) no Hoare annotation was computed. [2020-09-25 03:29:28,177 INFO L268 CegarLoopResult]: For program point L228(line 228) no Hoare annotation was computed. [2020-09-25 03:29:28,177 INFO L268 CegarLoopResult]: For program point L228-1(line 228) no Hoare annotation was computed. [2020-09-25 03:29:28,177 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-09-25 03:29:28,177 INFO L268 CegarLoopResult]: For program point L224-1(line 224) no Hoare annotation was computed. [2020-09-25 03:29:28,177 INFO L264 CegarLoopResult]: At program point net_reopenENTRY(lines 214 229) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0) (= |old(~batch_at~0)| ~batch_at~0)) (not (<= ~fstTTL~0 1)) (not (<= 1 ~fstTTL~0))) [2020-09-25 03:29:28,177 INFO L268 CegarLoopResult]: For program point net_reopenFINAL(lines 214 229) no Hoare annotation was computed. [2020-09-25 03:29:28,177 INFO L268 CegarLoopResult]: For program point L218(line 218) no Hoare annotation was computed. [2020-09-25 03:29:28,178 INFO L268 CegarLoopResult]: For program point L216(line 216) no Hoare annotation was computed. [2020-09-25 03:29:28,178 INFO L268 CegarLoopResult]: For program point L216-1(line 216) no Hoare annotation was computed. [2020-09-25 03:29:28,178 INFO L264 CegarLoopResult]: At program point L216-2(lines 216 226) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0) (= |old(~batch_at~0)| ~batch_at~0)) (not (<= ~fstTTL~0 1)) (not (<= 1 ~fstTTL~0))) [2020-09-25 03:29:28,178 INFO L268 CegarLoopResult]: For program point L216-3(lines 216 226) no Hoare annotation was computed. [2020-09-25 03:29:28,178 INFO L264 CegarLoopResult]: At program point L227(line 227) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0) (= |old(~batch_at~0)| ~batch_at~0)) (not (<= ~fstTTL~0 1)) (not (<= 1 ~fstTTL~0))) [2020-09-25 03:29:28,178 INFO L264 CegarLoopResult]: At program point L227-1(line 227) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (not (<= ~fstTTL~0 1)) (<= (+ ~batch_at~0 1) ~fstTTL~0) (not (<= 1 ~fstTTL~0))) [2020-09-25 03:29:28,178 INFO L264 CegarLoopResult]: At program point net_send_batchENTRY(lines 203 213) the Hoare annotation is: (or (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) (not (<= ~fstTTL~0 1)) (not (<= 1 ~fstTTL~0)) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0)) [2020-09-25 03:29:28,179 INFO L268 CegarLoopResult]: For program point net_send_batchFINAL(lines 203 213) no Hoare annotation was computed. [2020-09-25 03:29:28,179 INFO L268 CegarLoopResult]: For program point net_send_batchEXIT(lines 203 213) no Hoare annotation was computed. [2020-09-25 03:29:28,179 INFO L264 CegarLoopResult]: At program point L208(line 208) the Hoare annotation is: (or (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) (not (<= ~fstTTL~0 1)) (not (<= 1 ~fstTTL~0))) [2020-09-25 03:29:28,179 INFO L268 CegarLoopResult]: For program point L208-1(line 208) no Hoare annotation was computed. [2020-09-25 03:29:28,179 INFO L268 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-09-25 03:29:28,179 INFO L268 CegarLoopResult]: For program point L208-2(line 208) no Hoare annotation was computed. [2020-09-25 03:29:28,179 INFO L268 CegarLoopResult]: For program point L208-3(line 208) no Hoare annotation was computed. [2020-09-25 03:29:28,179 INFO L268 CegarLoopResult]: For program point L208-4(lines 208 209) no Hoare annotation was computed. [2020-09-25 03:29:28,179 INFO L268 CegarLoopResult]: For program point L208-5(line 208) no Hoare annotation was computed. [2020-09-25 03:29:28,180 INFO L268 CegarLoopResult]: For program point L206-3(lines 206 211) no Hoare annotation was computed. [2020-09-25 03:29:28,180 INFO L268 CegarLoopResult]: For program point L206-4(line 206) no Hoare annotation was computed. [2020-09-25 03:29:28,180 INFO L268 CegarLoopResult]: For program point L208-7(line 208) no Hoare annotation was computed. [2020-09-25 03:29:28,180 INFO L268 CegarLoopResult]: For program point L206-5(line 206) no Hoare annotation was computed. [2020-09-25 03:29:28,180 INFO L264 CegarLoopResult]: At program point L206-6(lines 206 211) the Hoare annotation is: (or (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) (not (<= ~fstTTL~0 1)) (and (<= net_send_batch_~i~0 0) (<= 0 net_send_batch_~i~0) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0)) (not (<= 1 ~fstTTL~0))) [2020-09-25 03:29:28,180 INFO L268 CegarLoopResult]: For program point L206-7(lines 206 211) no Hoare annotation was computed. [2020-09-25 03:29:28,180 INFO L264 CegarLoopResult]: At program point net_resetENTRY(lines 198 202) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (not (<= ~fstTTL~0 1)) (not (<= 1 ~fstTTL~0)) (= |old(~batch_at~0)| ~batch_at~0)) [2020-09-25 03:29:28,181 INFO L268 CegarLoopResult]: For program point net_resetEXIT(lines 198 202) no Hoare annotation was computed. [2020-09-25 03:29:28,181 INFO L268 CegarLoopResult]: For program point net_resetFINAL(lines 198 202) no Hoare annotation was computed. [2020-09-25 03:29:28,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:29:28 BoogieIcfgContainer [2020-09-25 03:29:28,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:29:28,206 INFO L168 Benchmark]: Toolchain (without parser) took 21592.71 ms. Allocated memory was 140.5 MB in the beginning and 670.6 MB in the end (delta: 530.1 MB). Free memory was 101.9 MB in the beginning and 397.9 MB in the end (delta: -296.0 MB). Peak memory consumption was 234.1 MB. Max. memory is 7.1 GB. [2020-09-25 03:29:28,207 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 03:29:28,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1575.13 ms. Allocated memory was 140.5 MB in the beginning and 260.6 MB in the end (delta: 120.1 MB). Free memory was 101.3 MB in the beginning and 151.3 MB in the end (delta: -50.1 MB). Peak memory consumption was 175.9 MB. Max. memory is 7.1 GB. [2020-09-25 03:29:28,209 INFO L168 Benchmark]: Boogie Preprocessor took 91.98 ms. Allocated memory is still 260.6 MB. Free memory was 151.3 MB in the beginning and 147.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2020-09-25 03:29:28,210 INFO L168 Benchmark]: RCFGBuilder took 566.80 ms. Allocated memory is still 260.6 MB. Free memory was 147.7 MB in the beginning and 122.1 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-09-25 03:29:28,211 INFO L168 Benchmark]: TraceAbstraction took 19349.21 ms. Allocated memory was 260.6 MB in the beginning and 670.6 MB in the end (delta: 410.0 MB). Free memory was 122.1 MB in the beginning and 397.9 MB in the end (delta: -275.8 MB). Peak memory consumption was 134.2 MB. Max. memory is 7.1 GB. [2020-09-25 03:29:28,215 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1575.13 ms. Allocated memory was 140.5 MB in the beginning and 260.6 MB in the end (delta: 120.1 MB). Free memory was 101.3 MB in the beginning and 151.3 MB in the end (delta: -50.1 MB). Peak memory consumption was 175.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.98 ms. Allocated memory is still 260.6 MB. Free memory was 151.3 MB in the beginning and 147.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 566.80 ms. Allocated memory is still 260.6 MB. Free memory was 147.7 MB in the beginning and 122.1 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19349.21 ms. Allocated memory was 260.6 MB in the beginning and 670.6 MB in the end (delta: 410.0 MB). Free memory was 122.1 MB in the beginning and 397.9 MB in the end (delta: -275.8 MB). Peak memory consumption was 134.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 193]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 216]: Loop Invariant Derived loop invariant: ((!(\old(batch_at) + 1 <= fstTTL) || (\old(__tmpTR__int_1) == __tmpTR__int_1 && \old(batch_at) == batch_at)) || !(fstTTL <= 1)) || !(1 <= fstTTL) - InvariantResult [Line: 206]: Loop Invariant Derived loop invariant: ((!(batch_at + 1 <= fstTTL) || !(fstTTL <= 1)) || ((i <= 0 && 0 <= i) && \old(__tmpTR__int_1) == __tmpTR__int_1)) || !(1 <= fstTTL) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.2s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 257 SDtfs, 508 SDslu, 870 SDs, 0 SdLazy, 925 SolverSat, 109 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 18 PreInvPairs, 20 NumberOfFragments, 265 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 14 FomulaSimplificationsInter, 637 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 14.5s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 74396 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 62/80 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...